The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2018
Filed:
Dec. 24, 2015
Tungaloy Corporation, Iwaki-shi, Fukushima, JP;
Yusuke Hirano, Iwaki, JP;
Kentaro Shiro, Iwaki, JP;
TUNGALOY CORPORATION, Iwaki-Shi, Fukushima, JP;
Abstract
A cBN sintered body has 40%-85% cBN by volume and 15% to 60% binder phase by volume. and inevitable impurities. The binder phase has an Al compound including Al and at least one element selected from N, O and B, and a Zr compound including Zr and at least one element selected from C, N, O and B. The Zr compound includes ZrO, or ZrO and ZrO. In an X-ray diffraction, where a peak intensity of a (111) plane of the ZrO is I, a peak intensity of a (101) plane of tetragonal ZrOis Iand a peak intensity of a (111) plane of cubic ZrOis I, a ratio of the intensity of Ito total intensities of I, Iand Iis 0.6-1.0, and an average grain size of the Al compound is 80 nm-300 nm.