Polymer‐derived ceramics (PDCs) are innovative materials with a wide range of novel applications (micro fibers, protective coatings, porous materials, MEMS). Among high‐performance, non‐oxide ceramics, hexagonal boron nitride offers interesting potentialities as fibrous reinforcing agent for ceramic composites. Boron nitride can easily be produced ...
Published in Silicon
Silicon carbide based fibers are generally prepared by the melt spinning of ceramic material precursors like polycarbosilane (PCS) and the hetero-metal substituted derivatives (M-PCS). Therefore, the rheological behaviour of PCS in the melt with respect to time, temperature, atmosphere, molecular weight and polydispersity becomes very important for...
Published in Acta biomaterialia
Here, we show that the incorporation of Mg in Ca-silicates plays a significant role in the enhancement of the osteogenic differentiation and matrix formation of MC3T3-E1 cells, cultured on polymer-derived highly porous scaffolds. Reduced degradation rates and improved mechanical properties are also observed, compared to Mg-free counterparts, sugges...
La photo-catalyse est une voie très prisée pour la dépollution de l’eau ou de l’air. Le photo-catalyseur le plus employé est le dioxyde de titane (TiO2) mais l’activité photo-catalytique peut fortement varier d’une poudre à l’autre. De plus, il est très avantageux, voire nécessaire, de le déposer sur un support, pour une manipulation aisée, notamme...
he scientific and technological challenges of energy-related fields are mainly associated with the emergence of new, advanced knowledge and fundamental understanding of materials. In the different categories of materials, ceramics offer a unique combination of physical and chemical properties making them key contributors for energy production/conve...
Open-Celled silicon carbide (SiC) foams were prepared from a mixture of a boron-modified polycarbosilane as a preceramic polymer and poly(methymetacrylate) (PMMA) microbeads as sacrificial agents. The process consists in the cross-linking of the liquid allylhydridopolycarbosilane (AHPCS, SiC precursor) with borane dimethylsulfide (BDMS, boron sourc...
Thesis (Master)--Izmir Institute of Technology, Materials Science and Engineering, Izmir, 2019 / Includes bibliographical references (leaves: 36-38) / Text in English; Abstract: Turkish and English / Ceramic fibers which are classified as oxide and non-oxide fibers are preferred to use in applications which are carried out at high temperature since...
La limitation de notre impact environnemental passe en partie par la recherche et le développement de nouveaux procédés et matériaux, et les céramiques techniques ont une place essentielle parmi ceux-ci. Les composites à matrices céramiques (CMCs) permettent le renfort de nombreux types de structures, principalement pour des applications à hautes t...
Les céramiques techniques 3D à géométrie complexe font actuellement l’objet d'une demande croissante pour diverses applications dans des conditions sévères. Elles présentent des propriétés importantes telles qu’une excellente stabilité chimique, une grande résistance à l’oxydation et la corrosion ainsi que des propriétés mécaniques importantes les ...
