RADIATION-INDUCED MICROSTRUCTURE AND MECHANICAL PROPERTY EVOLUTION OF SIC/C/SIC COMPOSITE-MATERIALS

被引：41

作者：

SNEAD, LL ^{[1
]}

ZINKLE, SJ ^{[1
]}

STEINER, D ^{[1
]}

机构：

[1] RENSSELAER POLYTECH INST, TROY, NY 12180 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 191卷

关键词：

D O I：

10.1016/0022-3115(92)90828-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chemically vapor deposited (CVD) SiC/C/Nicalon composites have been neutron irradiated in both HFIR and FFTF from 1 to 15 dpa and have been ion beam damaged with 3 MeV carbon ions to 30 dpa in a temperature range from room temperature to 900-degrees-C. Following room temperature carbon irradiation amorphization occurred in both the CVD SiC and Nicalon fiber with measured amorphization thresholds of 15 and 1 dpa, respectively. Elastic modulus and hardness have been measured for both the ion beam and neutron irradiated materials. The CVD SiC showed a significant decrease in modulus and hardness following irradiation while the Nicalon fibers modulus and hardness increased.

引用

页码：560 / 565

页数：6

共 6 条

[1] A METHOD FOR RAPID CHEMICAL VAPOR INFILTRATION OF CERAMIC COMPOSITES [J].