GRADIENT NANOPOROUS STRUCTURES BASED ON SILICON CARBIDE AND BORON NITRIDE IN SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS

被引：1

作者：

Uvarov, V. I. ^{[1
]}

Borovinskaya, I. P. ^{[1
]}

Zakorzhevskii, V. V. ^{[1
]}

Malevannaya, I. G. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Struct Macrokinet & Mat Sci, Chernogolovka 142432, Moscow Region, Russia

来源：

POWDER METALLURGY AND METAL CERAMICS | 2010年 / 49卷 / 7-8期

关键词：

microstructure; temperature; combustion; gradient; mixture; intermetallide; powder; particle;

D O I：

10.1007/s11106-010-9259-8

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The paper examines high-temperature corrosion-resistant strong nanoporous structures based on silicon carbide and boron nitride and effective membranes produced from them. The samples made of silicon carbide and boron nitride have the following characteristics: 40-48% and 38% open porosity; 0.05 mu m and 0.045 mu m pore size; 29 MPa and 19 MPa bending strength; and 0.119 mu m(2) and 0.0819 mu m(2) gas permeability. Anisotropy is revealed in membranes. It permits using the membranes as gas diodes and as a peculiar storage of gas molecules in the membrane (in particular, hydrogen molecules).

引用

页码：465 / 467

页数：3