PREPARATION OF MATERIALS IN THE SYSTEM AL2O3 (WITH ADDITIONS) - TIB2 AND STUDY OF THEIR ELECTRICAL-RESISTANCE

Authors
KONDRASHEV AI PETROVSKII VY
Citation
Ai. Kondrashev et Vy. Petrovskii, PREPARATION OF MATERIALS IN THE SYSTEM AL2O3 (WITH ADDITIONS) - TIB2 AND STUDY OF THEIR ELECTRICAL-RESISTANCE, Powder metallurgy and metal ceramics, 35(11-12), 1996, pp. 597-599
Citations number
12
Categorie Soggetti
Material Science, Ceramics","Metallurgy & Metallurigical Engineering
Journal title
Powder metallurgy and metal ceramics → ACNP
ISSN journal
10681302
Volume
35
Issue
11-12
Year of publication
1996
Pages
597 - 599
Database
ISI
SICI code
1068-1302(1996)35:11-12<597:POMITS>2.0.ZU;2-V
Abstract
Materials in the system AE(2)O(3) (with additions of ZrO2, SiO2, CeO2, Si3N4. AlN)-TiB2 containing titanium boride concentrations up to 70 w t. % were prepared by sintering in carbon monoxide (T = 1873 K, t = 3 h). The relative density of these materials did not exceed 69% of theo retical, with a minimum al approximately 38% TiB2 an the density la. c omposition curve. The specific electrical resistance of the materials decreased from 3.4.10(9) to 82 Omega.cm with increasing titanium borid e concentration. An abrupt decrease in electrical resistance occurred in the range 20-30% titanium boride.