MECHANICAL BEHAVIOR OF SINTERED POROUS TWO-PHASE TITANIUM NANOLAMINATE-COMPOSITES AT HIGH TEMPERATURES

被引：2

作者：

Firstov, Sergiy A. ^{[1
]}

Gorban, Victor F. ^{[1
]}

Ivanova, Inna I. ^{[1
]}

Pechkovsky, Engel P. ^{[1
]}

机构：

[1] NAS Ukraine, Frantcevich Inst Problems Mat Sci, UA-03142 Kiev 142, Ukraine

来源：

FRACTOGRAPHY OF ADVANCED CERAMICS III | 2009年 / 409卷

关键词：

Titanium nanolaminate-composites; Indentation strength; Compression strength; Fractography;

D O I：

10.4028/www.scientific.net/KEM.409.300

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：

Regularities, features and mechanisms of deformation and fracture processes of new ceramic materials - porous (theta=3-35%) two-phase titanium nanolaminate-composites Ti3SiC2/TiC, Ti3AlC2/TiC, Ti4AlN3/TiN (content of TiC or TiN - 5-70% vol.) at 20-1300 degrees C are established. Composites are made by reaction sintering. On increase in mechanical properties and resistance to deformation they settle down in the following sequence: Ti3AlC2/TiC-Ti4AlN3/TiN-Ti3SiC2/TiC. In porous nanolaminate-composites containing less than 20% TiC the increase in porosity theta results in decrease in high-temperature strength sigma(pl) and increase of plasticity epsilon. Appreciable increase of strength of porous composites is marked at content TiC>25-30% (vol.).

引用

页码：300 / 303

页数：4