Controlled Porosity Alumina Structures for Ultra-Precision Hydrostatic Journal Bearings

被引：4

作者：

Durazo-Cardenas, Isidro S. ^{[1
]}

Stephenson, David J. ^{[1
]}

Corbett, John ^{[1
]}

机构：

[1] Cranfield Univ, Dept Mat, Cranfield MK43 0AL, Beds, England

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2010年 / 93卷 / 11期

关键词：

POROUS CERAMICS;

D O I：

10.1111/j.1551-2916.2010.03960.x

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：

A series of fine-grade alumina powders has been used in combination with maize starch granules to produce porous structures for porous hydrostatic journal-bearing applications. A comprehensive series of tests was conducted to characterize porosity in terms of density, pore size, and permeability. Successful processing of quality journal-bearing components has been demonstrated for preferred combinations of alumina size and starch content, using fixed-processing parameters. The new porous ceramic bearings showed consistent and reproducible properties and are suitable for a wide range of higher precision engineering applications. The porous ceramic-bearing processing route has also proved to be low cost and environmentally sound.

引用

页码：3671 / 3678

页数：8

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