Patent · US Expired

Method for the fabrication of a ceramic material by hybrid chemical process and material obtained thereby

US5017534A · kind A · utility

9Cited by
4References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 30, 1989
Grant dateMay 21, 1991
Priority date
Expiry dateAug 30, 2009

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01P2006/36
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

The disclosure concerns the fabrication, by chemical process, of a ceramic material belonging to the system: EQU Ba.sub.x Sr.sub.1-x (Ti.sub.u Zr.sub.v Hf.sub.w)O.sub.3 The fabrication method comprises the following steps: PA1 preparation of an alcohol solution containing at least one titanium, zirconium or hafnium alcoholate, PA1 preparation of a determined quantity of hydrated barium hydroxide and/or hydrated strontium hydroxide in solid state; PA1 under violent shaking, dissolving of the hydroxide or hydroxides in the alcohol solution, and continuing of the reaction until a paste is obtained, PA1 drying of the paste obtained.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.