A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MODIFIED PRECERAMIC POLYMERS, METHOD OF MAKING AND CERAMIC MATRIX COMPOSITE FORMED THEREFROM
Disclosed is a modified preceramic polymer having a polymer backbone consisting of silicon or a combination of silicon and carbon; and a pendant modifier bonded to the backbone wherein the modifier includes silicon, boron, aluminum, a transition metal, a refractory metal, or a combination thereof. The modified preceramic polymer can be used to form a ceramic matrix composite, wherein the matrix comprises silicon carbide and metal carbide and the metal carbide is homogeneously dispersed throughout the silicon carbide. The preceramic polymer is a polysilane, a polycarbosilane, or a mixture of polysilane and polycarbosilane, and/or the preceramic polymer comprises a vinyl group. T he pendant modifier includes silicon, boron, aluminum, titanium, zirconium, hafnium, vanadium, chromium, niobium, tantalum, molybdenum, tungsten or rhenium.
MODIFIED PRECERAMIC POLYMERS, METHOD OF MAKING AND CERAMIC MATRIX COMPOSITE FORMED THEREFROM
Disclosed is a modified preceramic polymer having a polymer backbone consisting of silicon or a combination of silicon and carbon; and a pendant modifier bonded to the backbone wherein the modifier includes silicon, boron, aluminum, a transition metal, a refractory metal, or a combination thereof. The modified preceramic polymer can be used to form a ceramic matrix composite, wherein the matrix comprises silicon carbide and metal carbide and the metal carbide is homogeneously dispersed throughout the silicon carbide. The preceramic polymer is a polysilane, a polycarbosilane, or a mixture of polysilane and polycarbosilane, and/or the preceramic polymer comprises a vinyl group. T he pendant modifier includes silicon, boron, aluminum, titanium, zirconium, hafnium, vanadium, chromium, niobium, tantalum, molybdenum, tungsten or rhenium.
MODIFIED PRECERAMIC POLYMERS, METHOD OF MAKING AND CERAMIC MATRIX COMPOSITE FORMED THEREFROM
MODIFIZIERTE PRÄKERAMISCHE POLYMERE, VERFAHREN ZU DEREN HERSTELLUNG UND DARAUS HERGESTELLTER KERAMISCHER MATRIXVERBUNDWERKSTOFF
POLYMÈRES PRÉCÉRAMIQUES MODIFIÉS, PROCÉDÉ DE FABRICATION ET COMPOSITE À MATRICE CÉRAMIQUE FORMÉ À PARTIR DE CEUX-CI
SCHMIDT WAYDE R (author) / SHEEDY PAUL (author)
2022-03-30
Patent
Electronic Resource
English
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