COMPOSITE SINTERED PRODUCT FROM BORON NITRIDE AND SPINEL

Title:

COMPOSITE SINTERED PRODUCT FROM BORON NITRIDE AND SPINEL

Document Type and Number:

Japanese Patent JPH1192230

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a material that is excellent in heat shock resistance and shows extremely reduced loss in dissolution even when it is soaked in molten metal for a long time. SOLUTION: This boron nitride comprises 10-90 wt.%, particularly 20-80 wt.% of hexagonal boron nitride and 90-10 wt.%, particularly 80-20 wt.% of MgO.Al2 O3 spinel. Or on the surface of sintered composite material of hexagonal boron nitride and MgO.Al2 O3 spinel, is formed a coating layer mainly comprising MgO.Al2 O3 spinel.

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JPS61117181	COATING COMPOSITION
JPH04231368	BASIC REFRACTORY

Inventors:

HARA HIROYUKI
ADACHI KENICHI
YOSHINO NOBUYUKI
NAKAMURA YOSHIYUKI

Application Number:

JP25307597A

Publication Date:

April 06, 1999

Filing Date:

September 18, 1997

Export Citation:

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Assignee:

DENKI KAGAKU KOGYO KK

International Classes:

C04B35/443; C04B35/583; C04B35/626; C04B41/87; (IPC1-7): C04B35/583; C04B35/443

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