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An soda silica glass containing alumina and zirconia

A technology of zirconia and silicon glass, which is applied in the field of glass, can solve the problems of glass brittleness, weak mechanical properties, inability to obtain wear resistance, scratch resistance, impact resistance, bending toughness, etc., and achieve good toughness and excellent mechanical properties Effect

Active Publication Date: 2020-11-06
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because CaO is still an alkaline oxide, the glass is relatively brittle, has low hardness, and its mechanical properties are relatively weak, so it cannot achieve relatively excellent wear resistance, scratch resistance, impact resistance, and bending toughness.

Method used

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  • An soda silica glass containing alumina and zirconia
  • An soda silica glass containing alumina and zirconia

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Embodiment Construction

[0016] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention. Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0017] The present invention will be described in further detail below:

[0018] The hardness and brittleness of glass seriously restrict the application and development of glass. At present, the widely used soda lime glass (Na 2 O-CaO-SiO 2 ) Is relatively better in melting preparation, which can meet the requirements of low melting temperature and long glass frit properties, bu...

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Abstract

The invention discloses R2O-SiO2 glass containing alumina and zirconia, which is prepared from 45 to 80 percent of SiO2, 10 to 30 percent of R2O and 10 to 25 percent of ZrO2+Al2O3 according to mol percentage, wherein the molar ratio of ZrO2 to Al2O3 is 1:4, and the molar ratio of the R2O to the Al2O3+ZrO2 is 1.0 to 1.2. Since Al2O3 and the ZrO2 are introduced into the R2O-SiO2 glass, the rearrangement and reconstruction of a glass structure are effectively realized; by mean of the components and the proportion, the melting property, forming property and processing property of the glass are alltaken into account, and moreover, the glass disclosed by the invention has the advantages of relatively excellent mechanical properties, good toughness, impact resistance and scratch resistance.

Description

Technical field [0001] The invention relates to the technical field of glass, in particular to an alkali silica glass containing alumina and zirconia. Background technique [0002] Alkali silica glass (R 2 O-SiO 2 ) Is the most basic binary glass system, R 2 O is an alkali metal oxide with good melting characteristics, but its chemical stability and mechanical strength are not good, so it becomes its fatal weakness, even if a composite alkali metal oxide (Li 2 O, Na 2 O, K 2 O) For performance adjustment and improvement, the performance improvement is relatively limited. If it is desired to form a relatively stable glass, it is generally necessary to meet and control R 2 O / SiO 2 Molar ratio <0.5, then the total amount of alkali metal oxide is required to be in the total amount of alkali silica glass (R 2 O=Li 2 O, Na 2 O, K 2 O) Less than 33 mol% can meet the technical requirements for glass. [0003] Alkali silica glass (R 2 O-SiO 2 ) The structure in the three-dimensional spac...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/083
Inventor 田英良杨宝瑛孙诗兵吕锋李辉
Owner BEIJING UNIV OF TECH