Standard GB/T1804-m & ISO 2768-1/2

GB/T1804 GB/T1804 is a Chinese standard. The "-m" indicates the tolerance class. This standard is equivalent to ISO 2768. Detail Information of GB/T 1804-2000 Description : General tolerances Tolerances for linear and angular dimensions without individual tolerance indications Sector / Industry: China National Standard Classification of Chinese Standard: J04 Classification of International Standard: 17.040.10 Date of Issue: 2000-07-24 …

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Mechanical and physical properties of engineering alumina ceramics

VTT TIEDOTTEITA ¨C MEDDELANDEN ¨C RESEARCH NOTES 1792 Mechanical and physical properties of engineering alumina ceramics Pertti AuerkariVTT Manufacturing Technology ISBN 951-38-4987-2ISSN 1235-0605 Copyright Valtion teknillinen tutkimuskeskus (VTT) 1996 INTRODUCTION Chemical and thermal stability, relatively good strength, thermal and electrical insulation characteristics combined with availability in abundance have made aluminium oxide Al2O3, or alumina, attractive …

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The glass phase’s influence on alumina ceramics

The content of glass phase has an important influence on the production and quality of Al2O3 ceramics. The glass phase plays a role in the bonding of the Al2O3 ceramic slabs, which together with the dispersed crystalline phases, can fill the pores in the ceramic and make the ceramic materials compact. The glass phase can …

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α- Al2O3,β- Al2O3,γ- Al2O3

Alumina ceramics is a kind of ceramic material with alpha Al2O3 as the main crystal. The Al2O3 content is generally from 65% to 99.99%. Industrial alumina is composed of bauxite (Al2O3 - 3H2O) and diaspore preparation, the purity requirements is not high, generally prepared by chemical methods. Fused corundum is used as the raw material to add carbon …

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