Cdgm Glass Co., Ltd

Lulu Mao

Bo Kuang

Wei Sun

Liangzhen Hao

Zhenyu Liu

Xuemei Chen

Xiaochun Li

A glass with high thermal expansion coefficient and excellent thermal shock resistance, wherein the glass includes the following components by mole percentage: 55-80% of SiO; 0-10% of BO; 0-10% of AlO; 2-20% of ZnO; 0-15% of MgO; and no more than 30% of LiO+NaO+KO. Through the reasonable proportioning of components, the glass has high thermal expansion coefficient and excellent thermal shock resistance at the same time. The glass is suitable for chemical strengthening, and the glass product obtained after chemical strengthening has large surface stress and large depth of stress layer.

Glass and glass product

A glass composition with high Young's modulus and specific modulus, wherein the glass composition includes the following components by weight percentage: 30-46% of SiO, 0-6% of BO, 10-30% of AlO, 4-20% of CaO, 2-15% of MgO, and 13-32% of YO. The glass composition uses common chemical raw materials. By reasonably arranging the contents of each component, the glass is good in heat resistance, chemical stability and press-molding devitrification resistance performance, low in high-temperature viscosity, convenient in bubble elimination, with specific modulus above 34 and Young's modulus above 100 GPa, and is suitable for hard disk substrate manufacturing, semiconductor sealing and other fields.

Glass composition

A glass composition with high Young's modulus and low density. The glass composition includes the following components by mole percentage: 52-70% of SiO, 5-10% of BO, 5-15% of AlO, 8-20% of CaO and 5-18% of MgO. The glass composition uses common chemical raw materials. By reasonably designing the contents of each component, the glass composition has high Young's modulus, low density, good heat resistance and chemical stability, relatively low high-temperature viscosity, and low raw material cost. The glass composition is easy to eliminate stripes and bubbles during manufacturing, and is suitable for hard disk substrate manufacturing other fields that need high Young's modulus materials.

Growing community of inventors

Chengdu, China

Lulu Mao