Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
IN-SITU FORMATION OF CA(6) PLATELETS IN AL2O3 AND AL2O3 ZRO2 MATRICES/
Autore:
BELMONTE M; SANCHEZHERENCIA AJ; MORENO R; MIRANZO P; MOYA JS; TOMSIA AP;
Indirizzi:
CSIC,INST CERAM & VIDRIO,PLAZA MURILLO 2 MADRID SPAIN UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB BERKELEY CA 94720
Titolo Testata:
Journal de physique. IV
fascicolo: C7, volume: 3, anno: 1993,
parte:, 2
pagine: 1443 - 1447
SICI:
1155-4339(1993)3:C7<1443:IFOCPI>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALUMINA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
5
Recensione:
Indirizzi per estratti:
Citazione:
M. Belmonte et al., "IN-SITU FORMATION OF CA(6) PLATELETS IN AL2O3 AND AL2O3 ZRO2 MATRICES/", Journal de physique. IV, 3(C7), 1993, pp. 1443-1447

Abstract

Al2O3 and Al2O3/ZrO2 compacts containing CaO as a dopant have been sintered under different conditions and atmospheres: air, high vacuum (>10(.6)torr). SEM observations have been made on the polished surfacesof sintered and also of annealed samples. Only after the annealing treatment in air at temperatures ranging from 1400 degrees to 1500 degrees C, a massive formation of CA(6) platelets was detected in samples sintered in low oxygen partial pressure atmospheres. In order to clarify the mechanism of formation of this secondary phase at the grain boundaries, CaO has been introduced in the form of either plaster of Paris(to reproduce a possible contamination provided by the molds in slip casting) or CaCO3. The obtained results indicate the important role ofthe firing atmosphere on the precipitation of secondary phases at grain boundary.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 05:32:35