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:
Mar. 24, 2026
Filed:
Dec. 18, 2020
Chongqing Aureavia Hi-tech Glass Co., Ltd., Chongqing, CN;
Wei Hu, Chonqing, CN;
Baoquan Tan, Chonqing, CN;
Hao Huang, Chonqing, CN;
Wencheng Qin, Chonqing, CN;
Yanqi Zhang, Chonqing, CN;
CHONGQING AUREAVIA HI-TECH GLASS CO., LTD., Chongqing, CN;
Abstract
Disclosed in the present invention is a multi-crystal nucleus transparent glass-ceramic and a preparation method therefor, said preparation method comprising the following steps: during glass production, adding a plurality of types of nucleation agents, and after processing, acquiring a mother glass having certain outer dimensions; and placing the mother glass obtained in S2 under a temperature of T1 and heating for 1h-6h to perform annealing treatment, after the annealing treatment is complete, placing under a temperature of T2 and heating 1h-6h to perform nucleation treatment, and after nucleation treatment is complete, placing under a temperature of T3 and heating 0-3h to perform crystallization treatment. T1<T2. The present invention produces a glass-ceramic containing multiple types of crystal nuclei and having crystal phases of lithium disilicate and petalite. The multiple crystal nuclei reduces the nucleation and crystallization energies required for devitrification, thus being able to reduce thermal treatment temperature and time, and adjust the ratio of crystals. The glass-ceramic prepared by means of the present preparation method features an increased damage resistance, good fracture toughness, and a broad application range.