GLASS MATERIAL, AND PREPARATION METHOD THEREFOR AND PRODUCT THEREOF

Title:

GLASS MATERIAL, AND PREPARATION METHOD THEREFOR AND PRODUCT THEREOF

Document Type and Number:

WIPO Patent Application WO/2022/193400

Kind Code:

A1

Abstract:

A glass material, and a preparation method therefor and a product thereof. The glass material contains a lithium salt crystal phase and a phosphate crystal phase; moreover, the crystallinity of the whole material is 40-95%, the lithium salt crystal phase accounts for 40-90 wt%, and the phosphate crystal phase accounts for 2-15 wt%, wherein the lithium salt crystal phase is one or more of lithium silicate, lithium disilicate, and petalite, and the phosphate crystal phase is aluminum phosphate or/and aluminum metaphosphate. The Vickers hardness (Hv) of the glass material after being tempered is more than 900 kgf/mm2. The glass material or product is suitable for protective members such as a mobile terminal device and an optical device, has high hardness and strength, and can also be used for other decorations such as an outer frame member of a portable electronic device.

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Inventors:

ZHOU WEIWEI (CN)
ZHANG FUJUN (CN)
TIAN QIHANG (CN)
ZHANG JIHONG (CN)

Application Number:

PCT/CN2021/088560

Publication Date:

September 22, 2022

Filing Date:

April 21, 2021

Export Citation:

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Assignee:

CHANGSHU JIAHE DISPLAY TECH CO LTD (CN)

International Classes:

C03C3/097

Foreign References:

CN110143759A	2019-08-20
CN110482866A	2019-11-22
CN110510879A	2019-11-29
US6514893B1	2003-02-04
CN106242299A	2016-12-21
CN107845078A	2018-03-27
CN107001120A	2017-08-01

Other References: