The authors gratefully acknowledged the financial support provided by the National Key R&D Program of China(No.2021YFB3701500);the Program of Shanghai Academic/Technology Research Leader(No.22XD1404000).
Sic-based composites are widely used as electromagnetic wave absorbers due to their excellent dielectric properties.However,the constraints associated with structural design and the intricacies of the preparation proc...
the National Natural Science Foundation of China(Nos.52372059,52172068,52232004,and 52002092);the Heilongjiang Natural Science Fund for Young Scholars(No.YQ2021E017);the Fundamental Research Funds for the Central Universities(No.2022FRFK060012);the Heilongjiang Touyan Team Program,and the Advanced Talents Scientific Research Foundation of Shenzhen:Yu Zhou.the Beijing Engineering Research Center of Efficient and Green Aerospace Propulsion Technology and Advanced Space Propulsion Laboratory of BICE(No.LabASP-2023-11);the Huiyan Action(No.1A423653);the Key Technologies R&D Program of CNBM(No.2023SJYL05).Ralf Riedel also gratefully acknowledges the financial support provided by the Research Training Group 2561“MatCom-ComMat:Materials Compounds from Composite Materials for Applications in Extreme Conditions”funded by the Deutsche Forschungsgemeinschaft(DFG),Bonn,Germany.
To improve the oxidation resistance of short carbon fiber(C_(sf))-reinforced mechanically alloyed SiBCN(MA-SiBCN)(C_(sf)/MA-SiBCN)composites,dense amorphous C_(sf)/SiBCN composites containing both MA-SiBCN and polymer...
SiC_(f)/SiBCZr composites were prepared by polymer precursor impregnation and pyrolysis process with near stoichiometric ratio SiC fiber preform as reinforcement phase and SiBCZr multiphase ceramic precursor as impreg...
the National Natural Science Foundation of China(No.52032003);National Natural Science Foundation of China(Nos.51972082,52102093,and 52172041);Postdoctoral Research Foundation of China(No.2021M690817);the Science Foundation of National Key Laboratoryof Science and Technology on Advanced Composites in Special Environments.
In this paper,a high-yield Hf-modified SiHfBOC ceramic precursor was developed,and a high-pressure assisted impregnation pyrolysis method was proposed to achieve the preparation of 3D PyC–Cf/SiHfBOC composites.This h...
supported by the Key Program of the National Natural Science Foundation of China(No.52032003);the National Natural Science Foundation of China(Nos.519720820 and 51772061);the Science Foundation of the National Key Laboratory of Science and Technology on Advanced Composites in Special Environments(No.6142905202112);the Heilongjiang Provincial Postdoctoral Science Foundation(No.LBH-Z20144).
To further improve the oxidation resistance of polymer derived ceramic(PDC)composites in harsh environments,Cf/SiC/SiHfBOC composites were prepared by chemical vapor infiltration(CVI)and precursor impregnation pyrolys...
supported by the National Natural Science Foundation of China(Grant Nos.52072304,51632007,and 51872229);the 111 Project of China(B08040);the National Science and Technology Major Project(Grant No.2017-VI-0007-0077).
The SiBCN matrix via chemical vapor infiltration(CVI)or/and polymer infiltration pyrolysis(PIP)technologies was orderly introduced to SiC_(f)/SiC composites to optimize the mechanical property and electromagnetic(EM)s...
supported by the National Natural Science Foundation of China with Grant Nos.51502343 and 91426304
Continuous silicon carbide fiber reinforced silicon carbide matrix(SiC_f/SiC) composites are attractive candidate materials for aerospace engine system and nuclear reactor system. In this paper, SiC_f/SiC composites w...