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:
Feb. 20, 2024
Filed:
Jan. 28, 2020
Applicant:
Jx Nippon Mining & Metals Corporation, Tokyo, JP;
Inventors:
Assignee:
JX METALS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 33/32 (2006.01); C01B 33/24 (2006.01);
U.S. Cl.
CPC ...
C01B 33/32 (2013.01); C01B 33/24 (2013.01); C01P 2006/32 (2013.01); C01P 2006/90 (2013.01);
Abstract
A negative thermal expansion material, being formed from MSrBaZnSiO(wherein M is one or more types of Na and Ca, and x+y+z=1, 0<x≤0.5, 0.3<z<1.0), and an XRD peak intensity Iand a background intensity Iof a primary phase of an orthorhombic crystal structure which exhibits negative expansion characteristics satisfy a relation of I/I>15. An object of the present invention is to provide a negative thermal expansion material having a low specific gravity, and a negative thermal expansion material having a low Ba content.