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| 1 | Colorectal cancer screening: An updated review of the available options显示文摘Colorectal cancer(CRC) is a significant cause of morbidity and mortality worldwide. However,colon cancer incidence and mortality is declining over the past decade owing to adoption of effective screening programs. Nevertheless,in some parts of the world,CRC incidence and mortality remain on the rise,likely due to factors including 'westernized' diet,lifestyle,and lack of health-care infrastructure and resources. Participation and adherence to different national screening programs remain obstacles limiting the achievement of screening goals. Different modalities are available ranging from stool based tests to radiology and endoscopy with varying sensitivity and specificity. However,the availability of these tests is limited to areas with high economic resources. Recently,FDA approved a blood-based test(Epi procolon?) for CRC screening. This blood based test may serve to increase the participation and adherence rates. Hence,leading to increase in colon cancer detection and prevention. This article will discuss various CRC screening tests with a particular focus on the data regarding the new approved blood test. Finally,we will propose an algorithm for a simple cost-effective CRC screening program. | Iyad A Issa Malak Noureddine | 2017 | World Journal of Gastroenterology2017，23，28： | 49 |
| 2 | AZF microdeletions and partial deletions of AZFc region on the Y chromosome in Moroccan men显示文摘瞄准:第一次评估 Y 染色体的频率,并且讨论 AZF 删除的临床的意义微删除和在摩洛哥的人的 AZFc 区域的部分删除的出现。方法:我们屏蔽了 Y 染色体微删除和不肥沃的人的一个连续的组的 AZFc 区域的部分删除(n = 149 ) 并且控制(100 个肥沃的人, 76 个 normospermic 人) 。AZFa, AZFb, AZFc 和 AZFc 区域的部分删除被聚合酶链反应(PCR ) 根据确定的协议分析。结果:在为微删除屏蔽的 127 个不肥沃的人之中,四个题目被发现有微删除:二 AZFc 删除和二 AZFb+AZFc 删除。所有删除仅仅在 azoospermic 题目被发现(4/48, 8.33%) 。全面 AZFc 删除频率是低的(4/127, 3.15%) 。AZF 微删除没在 oligoasthenoteratozoospermia (燕麦) 或控制被观察。AZFc (gr/gr ) 的部分删除总共部分 AZFc 删除(gr/gr ) 在控制组被发现的 149 个不肥沃的人(4.70%) 中的 7 个和 7 的被观察(7/176, 3.98%) 。另外,二 b2/b3 删除在二个 azoospermic 题目被识别(2/149, 1.34%) 然而并非在控制组。结论:我们的结果建议 Y 染色体 AZF 微删除的频率与严重 spermatogenic 失败在个人被提高并且 gr/gr 删除没与 spermatogenic 失败被联系。 | Laila Imken Brahim El Houate Abdelaziz Chafik Halima Nahili Redouane Boulouiz Omar Abidi Elbakkay Chadli Noureddine Louanjli Abdelouhab Elfath Mohammed Hassar Ken McElreavey Abdelhamid Barakat Hassan Rouba | 2007 | Asian Journal of Andrology2007，9，5： | 22 |
| 3 | Biomarkers and subtypes of deranged lipid metabolism in nonalcoholic fatty liver disease显示文摘Nonalcoholic fatty liver disease(NAFLD)is a heterogeneous and complex disease that is imprecisely diagnosed by liver biopsy.NAFLD covers a spectrum that ranges from simple steatosis,nonalcoholic steatohepatitis(NASH)with varying degrees of fibrosis,to cirrhosis,which is a major risk factor for hepatocellular carcinoma.Lifestyle and eating habit changes during the last century have made NAFLD the most common liver disease linked to obesity,type 2 diabetes mellitus and dyslipidemia,with a global prevalence of 25%.NAFLD arises when the uptake of fatty acids(FA)and triglycerides(TG)from circulation and de novo lipogenesis saturate the rate of FAβ-oxidation and verylow density lipoprotein(VLDL)-TG export.Deranged lipid metabolism is also associated with NAFLD progression from steatosis to NASH,and therefore,alterations in liver and serum lipidomic signatures are good indicators of the disease’s development and progression.This review focuses on the importance of the classification of NAFLD patients into different subtypes,corresponding to the main alteration(s)in the major pathways that regulate FA homeostasis leading,in each case,to the initiation and progression of NASH.This concept also supports the targeted intervention as a key approach to maximize therapeutic efficacy and opens the door to the development of precise NASH treatments. | José M Mato Cristina Alonso Mazen Noureddin Shelly C Lu | 2019 | World Journal of Gastroenterology2019，25，24： | 19 |
| 4 | A Novel Active Learning Method Using SVM for Text Classification显示文摘Support vector machines(SVMs) are a popular class of supervised learning algorithms, and are particularly applicable to large and high-dimensional classification problems. Like most machine learning methods for data classification and information retrieval, they require manually labeled data samples in the training stage. However, manual labeling is a time consuming and errorprone task. One possible solution to this issue is to exploit the large number of unlabeled samples that are easily accessible via the internet. This paper presents a novel active learning method for text categorization. The main objective of active learning is to reduce the labeling effort, without compromising the accuracy of classification, by intelligently selecting which samples should be labeled.The proposed method selects a batch of informative samples using the posterior probabilities provided by a set of multi-class SVM classifiers, and these samples are then manually labeled by an expert. Experimental results indicate that the proposed active learning method significantly reduces the labeling effort, while simultaneously enhancing the classification accuracy. | Mohamed Goudjil Mouloud Koudil Mouldi Bedda Noureddine Ghoggali | 2018 | International Journal of Automation and computing2018，15，3： | 17 |
| 5 | Early treatment efficacy of S-adenosylmethionine in patients with intrahepatic cholestasis: A systematic review显示文摘BACKGROUND S-adenosylmethionine(AdoMet)is a metabolically pleiotropic molecule used to treat intrahepatic cholestasis(IHC)and chronic liver diseases.While the efficacy of AdoMet has been demonstrated previously,it has not been systematically investigated within the early weeks of treatment.AIM To systematically review the early treatment efficacy of AdoMet in adult patients with IHC.METHODS Studies reporting the efficacy of intravenous,intramuscular,or oral forms of AdoMet within 8 wk of treatment initiation were considered;three randomized and six non-randomized studies were eligible for inclusion(PROSPERO registration number CRD42018090936).Of the three randomized studies,two were double-blind and placebo-controlled,and one was comparator-controlled with unclear blinding and a relatively high risk of bias.Mean serum levels of alanine aminotransferase(ALT),aspartate aminotransferase(AST),alkaline phosphatase(ALP),and gamma-glutamyl transferase(γGT)following AdoMet treatment vs placebo,comparator,or baseline were summarized to determine differences in liver enzymes.Changes in patient-reported clinical symptoms of cholestasis were also summarized.RESULTS Both placebo-controlled randomized studies reported significant reductions in serum ALT levels with AdoMet vs placebo within 2 wk.One of these also reported significant ALP reductions,and the other reported significant AST andγGT reductions within 2 wk.The comparator-controlled randomized study,which had a number of notable limitations,reported significant reductions in serum ALT and AST levels with AdoMet vs potassium magnesium aspartate within 4 wk,but not within2 wk.All of the non-randomized studies(4/4)that investigated ALT,AST,ALP and/orγGT reported significant reductions in at least two of these parameters within 2 wk.Of the five studies that evaluated fatigue,reductions were observed within 2 wk in one randomized and two nonrandomized studies.The remaining two non-randomized studies reported improvements in fatigue within 6 and 8 wk.Of the four studies reporting symptoms of depression,two non-randomized studies observed improvements within 2 wk and the other two observed improvements within 17 d and 8 wk.CONCLUSION Data from both randomized and non-randomized studies suggest that AdoMet improves some biochemical liver parameters and symptoms of cholestasis within 2 wk,with further improvements observed in some studies after 4 and 8 wk of treatment. | Mazen Noureddin Suntje Sander-Struckmeier JoséM Mato | 2020 | World Journal of Hepatology2020，12，2： | 8 |
| 6 | Modeling of secondary treated wastewater disinfection by UV irradiation: Effects of suspended solids content显示文摘This work aimed to study UV-resistant strains of Pseudomonas aeruginosa, to propose a formulation of the kinetics of secondary treated wastewater disinfection and to underline the influence of suspended solids on the inactivation kinetics of these strains. Some investigations were carried out for the validation of some simulation models, from the simplest, the kinetics model of Chick-Watson reduced to first order, to rather complex models such as multi-kinetic and Collins-Selleck models. Results revealed that the involved processes of UV irradiation were too complex to be approached by a simplified formulation, even in the case of specific strains of microorganisms and the use of nearly constant UV radiation intensity. In fact, the application of Chick-Watson model in its original form is not representative of the kinetics of UV disinfection. Modification, taking into account the speed change during the disinfection process, has not significantly improved results. On the other hand, the application of Collins-Selleck model demonstrates that it was necessary to exceed a least dose of critical radiation to start the process of inactivation. To better explain the process of inactivation, we have assumed that the action of disinfectant on the survival of lonely microorganisms is faster than its action on suspended solids protected or agglomerated to each others. We can assume in this case the existence of two inactivation kinetics during the processes (parallel and independent) of the first-order. For this reason, the application of a new kinetic model by introducing a third factor reflecting the influence of suspended solids in water on disinfection kinetics appeared to be determinant for modeling UV inactivation of P. aeruginosa in secondary treated wastewater. | Mounaouer Brahmi Noureddine Hamed Belhadi Helmi Hamdi Abdennaceur Hassen | 2010 | Journal of Environmental Sciences2010，22，8： | 8 |
| 7 | Adsorption of Disperse Blue SBL dye by synthesized poorly crystalline hydroxyapatite显示文摘The present study has been undertaken to evaluate the adsorption in batch mode of a disperse dye (Disperse Blue SBL) by poorly crystalline hydroxyapatite synthesized by coprecipitation between Ca(NO_3)_2 and (NH_4)_2HPO4 reagents in aqueous solution at room temperature. The adsorption experiments were carried out to investigate the factors that influence the dye uptake by the adsorbent, such as the contact time under agitation, adsorbent dosage, initial dye concentration, solution temperature, and pH. The e... | BARKA Noureddine QOURZAL Samir ASSABBANE Ali NOUNAH Abederrahman AIT-ICHOU Yhya | 2008 | Journal of Environmental Sciences2008，20，10： | 6 |
| 8 | Fatty liver in hepatitis C patients post-sustained virological response with direct-acting antivirals显示文摘AIM To determine steatosis and fibrosis prevalence in hepatitis C patients after a sustained virological response achieved with direct-acting antivirals.METHODS Transient elastography with controlled attenuation parameter(CAP) was used to assess hepatic steatosis post-sustained virological response(SVR);the CAP technology was not available in the United States at study initiation.Liver stiffness/fibrosis was measured before and 47 wk after treatment completion.Patients with genotype 3 and patients with cirrhosis were excluded.RESULTS One hundred and one patients were included in the study.Post-SVR there were decreases from baseline in alanine aminotransferase(ALT)(63.1 to 17.8 U/L),aspartate aminotransferase(51.8 to 21.5 U/L) and fibrosis score(7.4 to 6.1 k Pa)(P < 0.05).Post-SVR,48 patients(47.5%) had steatosis on CAP;of these,6.25% had advanced fibrosis.Patients with steatosis had higher body mass index(29.0 vs 26.1 kg/m2),glucose(107.8 vs 96.6 mg/d L),ALT(20.4 vs 15.3 mg/d L),CAP score(296.3 vs 212.4 d B/m) and fibrosis score(7.0 vs 5.3 k Pa);P < 0.05.Interestingly,compared to baseline,both patients with and without steatosis had change in fibrosis score post-SVR(7.7 k Pa vs 7.0 k Pa and 7.0 k Pa vs 5.3 k Pa);alternatively,(P < 0.05) and therefore patients with steatosis continued to have clinically significant stiffness(≥ 7 k Pa).CONCLUSION Fatty liver is very common in hepatitis C virus(HCV) patients post-SVR.These patients continue to have elevated mean fibrosis score(≥ 7 k Pa) compared to those without fatty liver;some have advanced fibrosis.Long term follow up is needed to assess steatosis and fibrosis in HCV patients post-SVR. | Mazen Noureddin Micaela M Wong Tsuyoshi Todo Shelly C Lu Arun J Sanyal Edward A Mena | 2018 | World Journal of Gastroenterology2018，24，11： | 6 |
| 9 | Antibacterial activity of various honey types of Algeria against Pathogenic Gram–Negative Bacilli: Escherichia coli and Pseudomonas aeruginosa显示文摘 | Ahmed Moussa Djebli Noureddine Meslem Abdelmelek Aissat Saad | 2012 | Asian Pacific Journal of Tropical Disease2012，，3： | 5 |
| 10 | Sensor Fault Detection, Isolation and Reconstruction Using Nonlinear Principal Component Analysis显示文摘州的重建途径为传感器差错隔离,有缺点的测量的重建和在主要部件分析(PCA ) 保留的部件的数字的决心是很有用的模型。这条途径的延期在这篇论文基于一个非线性的 PCA (NLPCA ) 模型被描述。NLPCA 模型用五层被获得神经网络。一个模拟例子被给显示出建议途径的表演。关键词差错察觉和隔离 - 重建 - 非线性的 PCA (NLPCA )- 神经网络 Mohamed-Faouzi Harkat 收到了他的 B。Eng。在来自 Annaba 大学,在 1996 的阿尔及利亚和他从 Intitut 国家 Polytechnoque de Lorraine 的博士学位的自动化的度,在 2003 的法国。他现在是在系的一个助教在 Annaba 大学电子,阿尔及利亚。他的研究兴趣包括差错诊断,监视的过程, multivariate statiscal 途径和收到的神经网络 Salah Djelel 他的 B。Eng。在来自 Annaba 大学的电子学的度,在 1995 的阿尔及利亚。他现在是在部门的一个博士学生在 Annaba 电子大学。他的研究兴趣包括差错诊断,监视的进程,和收到的神经网络 Noureddine Doghmane 他的 B.Eng。在来自 Annaba 大学,在 1984 的阿尔及利亚和来自莱昂大学的博士的电子学的度,在 1988 的法国。他现在是在 Annaba 大学的设计科学学院的一个教授,阿尔及利亚。他的研究兴趣包括信号处理,当模特儿,指责察觉并且处理监视。Mohamed Benouaret 收到了他的 B.Eng。在 1992 的度和来自 Annaba 大学的在 2005 两个的博士学位,阿尔及利亚。他现在是在在 Annaba 大学的电子学的系的一个助教。他的研究兴趣包括差错诊断。 | Mohamed-Faouzi Harkat Salah Djelel Noureddine Doghmane Mohamed Benouaret | 2007 | International Journal of Automation and computing2007，4，2： | 5 |
| 11 | Neural network based adaptive sliding mode control of uncertain nonlinear systems显示文摘The purpose of this paper is the design of neural network-based adaptive sliding mode controller for uncertain unknown nonlinear systems. A special architecture adaptive neural network, with hyperbolic tangent activation functions, is used to emulate the equivalent and switching control terms of the classic sliding mode control (SMC). Lyapunov stability theory is used to guarantee a uniform ultimate boundedness property for the tracking error, as well as of all other signals in the closed loop. In addition to keeping the stability and robustness properties of the SMC, the neural network-based adaptive sliding mode controller exhibits perfect rejection of faults arising during the system operating. Simulation studies are used to illustrate and clarify the theoretical results. | Ghania Debbache Noureddine Goléa | 2012 | Journal of Systems Engineering and Electronics2012，23，1： | 4 |
| 12 | Liver trauma: What current management?显示文摘Background: The liver is the most commonly damaged organ in abdominal trauma. The management of liver trauma has experienced many changes over the last two decades. Currently there is a trend toward a non-operative treatment warranted by the successful pediatric experience and better results recorded in many trauma centers worldwide. This study aimed to evaluate outcomes of operative and non-operative management of liver trauma in our institution over the last five years.Methods: The patients with a diagnosis of blunt or penetrating liver injuries, admitted and managed in our hospital from January 2012 to December 2016 were retrospectively studied. The patients were divided into 2 groups, operated and non-operated groups, according to the initial management considered appropriate at the time of patient admission. Clinical features and outcomes were analyzed.Results: The study involved 83 patients, with a mean age of 33 years and a marked male predominance(85.5%). The most common type of lesions was blunt trauma and the main cause was road traffic accidents. Sixty-eight liver injuries(81.9%) were of low severity(grades Ⅰ,Ⅱ,Ⅲ), while 15(18.1%) were of high severity(grade Ⅳ or greater). Fifty-six patients(67.5%) had multiple injuries. Surgical treatment was performed in 26(31.3%) patients. Non-operative management was undertaken in 57 cases(68.7%). The morbidity and mortality rates were clearly lower in non-operative patients compared to those in the operated group.Conclusions: Careful non-operative management is an adequate therapeutic strategy for the patients suffering from liver trauma with stable hemodynamics. Patients with complex hepatic trauma and especially those with other organ injuries continue to have significantly higher mortality. | Mohamed Tarchouli Mohamed Elabsi Noureddine Njoumi Mohamed Essarghini Mahjoub Echarrab Mohamed Rachid Chkoff | 2018 | Hepatobiliary & Pancreatic Diseases International2018，17，1： | 4 |
| 13 | Improved Non-Covalent Biofunctionalization of Multi-Walled Carbon Nanotubes Using Carbohydrate Amphiphiles with a Butterfly-Like Polyaromatic Tail显示文摘We have developed an efficient strategy for the non-covalent functionalization of multi-walled carbon nanotubes(MWCNTs)which allows a biomimetic presentation of carbohydrates on their surface byπ-πstacking interactions.The strategy is based on the use of sugar-based amphiphiles functionalized with tetrabenzo[a,c,g,i]fluorene(Tbf),a polyaromatic compound with a topology that resembles a butterfly with open wings.The new carbohydrate-tethered Tbf amphiphiles have been synthesized in a straightforward manner using click chemistry.The reported method has been developed in order to improve the rather low ability of pyrene-based systems to exfoliate MWCNTs in water.By means of thermogravimetric analysis(TGA),ultraviolet(UV),infrared(IR),and fluorescence spectroscopies the interaction between MWCNTs and the Tbf group has been found to be stronger than those involving pyrene-based amphiphilic carbohydrates.The resulting aggregates with a multivalent sugar exposition on their surface are able to engage in specific ligand-lectin interactions similar to glycoconjugates on a cell membrane. | Mohyeddin Assali Manuel Pernía Leal Inmaculada Fernández Pablo Romero-Gomez Rachid Baati Noureddine Khiar | 2010 | Nano Research2010，3，11： | 3 |
| 14 | Removal of phosphate ions from aqueous solution using Tunisian clays minerals and synthetic zeolite显示文摘Phosphate ions are usually considered to be responsible for the algal bloom in receiving water bodies and aesthetic problems in water.From the environmental point of view,the management of such contaminant and valuable resource is very important.The present work deals with the removal of phosphate ions from aqueous solutions using kaolinitic and smectic clay minerals and synthetic zeolite as adsorbent.The pH effect and adsorption kinetic were studied.It was found that phosphate could be efficiently removed at acidic pH(between 4 and 6) and the second order model of kinetics is more adopted for all samples.The isotherms of adsorption of phosphate ions by the two clays and the zeolite samples show that the zeolite has the highest rate of uptake(52.9 mg P/g).Equilibrium data were well fitted with Langmuir and Freundlich isotherm. | Noureddine Hamdi Ezzeddine Srasra | 2012 | Journal of Environmental Sciences2012，24，4： | 3 |
| 15 | Significance of platelet count in children admitted with bronchiolitis显示文摘AIM To determine the true prevalence of thrombocytosis in children less than 2 years of age with bronchiolitis,its association with risk factors,disease severity and thromboembolic complications.METHODS A retrospective observational medical chart review of 305 infants aged two years or less hospitalized for bronchiolitis.Clinical outcomes included disease severity,duration of hospital stay,admission to pediatric intensive care unit,or death.They also included complications of thrombocytosis,including thromboembolic complications such as cerebrovascular accident,acute coronary syndrome,deep venous thrombosis,pulmonary embolus,mesenteric thrombosis and arterial thrombosis and also hemorrhagic complications such as bleeding(spontaneous hemorrhage in the skin,mucous membranes,gastrointestinal,respiratory,or genitourinary tracts).RESULTS The median age was 4.7 mo and 179 were males(59%).Respiratory syncytial virus was isolated in 268(84%),adenovirus in 23(7%) and influenza virus A or B in 13(4%).Thrombocytosis(platelet count > 500 × 109/L) occurred in 88(29%;95%CI:24%-34%),more commonly in younger infants with the platelet count declining with age.There was no significant association with the duration of illness,temperature on admission,white blood cell count,serum C-reactive protein concentration,length of hospital stay or admission to the intensive care unit.No death,thrombotic or hemorrhagic events occurred.CONCLUSION Thrombocytosis is common in children under two years of age admitted with bronchiolitis.It is not associated with disease severity or thromboembolic complications. | Amar Al Shibli Najla Alkuwaiti May Hamie Dima Abukhater Muhammad B Noureddin Abdulla Amri Salwa Al Kaabi Aysha Al Kaabi Mariam Harbi Hassib Narchi | 2017 | World Journal of Clinical Pediatrics2017，6，2： | 3 |
| 16 | Application of Prunus amygdalus By-products in Eco-friendly Dyeing of Textile Fabrics显示文摘Natural dyes have become an interesting subject of study because of their better ecological properties in comparison to their synthetic counterparts.This article concerns the dyeing of wool,silk,and polyamide fabrics with natural dyes extracted from almond shells and stems.The developed method of dyeing by these extracts is interesting and very attractive for several reasons:firstly,the extracts used are the black liquor discharged from the industries of delignification,which is a chemical process for removing lignin from agricultural wastes to produce a cellulosic fiber;(ii)these natural dyes are renewable and available in large quantities;(iii)this method is economical;and(iv)lastly,the dyeing performances of the obtained dyed textiles are very promising.The color of each dyed material was investigated in terms of the CIELAB coordinates and their fastness properties measured by washing,rubbing,and light. | Ibtissem Moussa Noureddine Baaka Ramzi Khiari Ali Moussa Gérard Mortha Mohamed Farouk Mhenni | 2018 | Journal of Renewable Materials2018，6，1： | 3 |
| 17 | Additive potential of ginger starch on antifungal potency of honey against Candida albicans显示文摘Objective:To evaluate the additive action of ginger starch on the antifungal activity of honey against Candida albicans(C.albicans).Methods:C.albicans was used to determine the minimum inhibitory concentration(MIC)of four varieties of Algerian honey.Lower concentrations of honey than the MIC were incubated with a set of concentrations of starch and then added to media to detennine the minimum additive inhibitory concentration(MAIC).Results:The MIC for the four varieties of honey without starch against C.albicans ranged between 38%and 42%(v/v).When starch was incubated with honey and then added to media,a MIC drop was noticed with each variety.MAIC of the four varieties ranged between 32%honey(v/v)with 4%starch and 36%honey(v/v) with 2%starch.Conclusions:The use of ginger starch allows honey benefit and will constitute an alternative way against the resistance to antifungal agents. | Ahmed Moussa Djebli Noureddine Hammoudi SM Aissat Saad Akila Bourabeh Hemida Houari | 2012 | Asian Pacific Journal of Tropical Biomedicine2012，2，4： | 3 |
| 18 | Antifungal activity of four honeys of different types from Algeria against pathogenic yeast:Candida albicans and Rhodotorula sp.显示文摘Objective:To evaluate the antifungal activity of four honeys of different types from Algeria against pathogenic yeast i.e.Candida albicans(C.albicans) and Rhoddtorula sp.Methods:Four Algeria honeys of different botanical origin were analvzed to test anlilungal effect against C.albicans,and Rhodotorula sp.Different concentrations(undiluted,10%,30%,50%and 70%w/v) of honey were studied in vitro for their antifugal aclivity using C.albicans and Rhodotorula sp.as fungal strains.Results:The range of the c liameter of zone of inhibition of various concentrations ol tested honeys was(7-23 mm) for Rhodotorula sp.,while C.albicans showed clearly resistance towards all concentrations used.The MICs of tested honey concentrations against C.albicans and Rhodotorula sp.were(70.09-93.48)%and(4.90-99.70)%v/v,respectively.Conclusions:This study demonstrales that,in vitro,these natural products have clearly an antifungal activity against Rhodotorula sp.and C.albicans. | Ahmed Moussa Djebli Noureddine Aissat Saad Meslem Abdelmelek Benhalima Abdelkader | 2012 | Asian Pacific Journal of Tropical Biomedicine2012，2，7： | 3 |
| 19 | Experimental study of heat transfer coefficient with rectangular baffle fin of solar air heater显示文摘 | Foued CHABANE Nesrine HATRAF Noureddine MOUMMI | 2014 | Frontiers in Energy2014，8，2： | 3 |
| 20 | Physico-chemical and mechanical properties of Ti_3SiC_2-based materials elaborated from SiC/Ti by reactive spark plasma sintering显示文摘In this paper, the synthesis of Ti_3 SiC_2 from SiC/Ti powder using reactive spark plasma sintering(R-SPS) in the temperature range of 1300-1400 ℃ is reported. The results show that the purity of Ti_3 SiC_2 is improved up to 75 wt% when the holding time is increased from 10 to 20 min at1400 ℃. The thermodynamic and experimental results indicate that Ti_3 SiC_2 formation takes place via the reaction of a pre-formed TiC phase with the silicides, formed from the eutectic compositions.Detailed analysis of mechanical behaviour indicates that samples with higher percentage of secondary phases exhibit higher microhardness and better resistance compared to the near single phase Ti_3 SiC_2. | Faten TURKI Houyem ABDERRAZAK Frédéric SCHOENSTEIN Florent TêTARD Mohieddine ABDELLAOUI Noureddine JOUINI | 2019 | Journal of Advanced Ceramics2019，8，1： | 2 |
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