Patent · US Active

Method for preparing high-density hexagonal boron nitride ceramic material

US10106412B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Assignee

HOHAI UNIVERSITY · CN

Inventors

Jianfeng Zhang · Shrewsbury, US
Yuping Wu · Kowloon, CN
Gaiye Li · 安丰镇, CN
Sheng Hong · Plainsboro, US
Wenmin Guo · Shijiazhuang, CN

Key dates

Filing date	Aug 14, 2014
Grant date	Oct 23, 2018
Priority date	—
Expiry date	Apr 17, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/96
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for preparation of a high-density hexagonal boron nitride (hBN) ceramic material is disclosed. According to the method, the surface of hBN powder is coated with an evenly-dispersed SiO2 nanoparticle layer using tetraethyl orthosilicate as a precursor, and then the high-density hBN ceramic material is obtained by pressureless sintering. The relative density of the prepared hBN ceramic material is over 80%.

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