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High-hardness high-Young-modulus oxide high-entropy glass as well as preparation method and application thereof

A Young's modulus and oxide technology, applied in glass manufacturing equipment, glass pressing, glass molding, etc., can solve the problems of limited improvement of glass hardness and Young's modulus, and achieve improved drop resistance and Abrasion resistance, excellent optical properties, the effect of great application value

Pending Publication Date: 2021-06-01
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Although the existing technology has improved the high hardness and high Young's modulus glass components, it still retains the characteristics of one or two oxides as the main body and other oxides as supplements. For the hardness and Young's modulus of the glass has a very limited effect on the

Method used

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  • High-hardness high-Young-modulus oxide high-entropy glass as well as preparation method and application thereof
  • High-hardness high-Young-modulus oxide high-entropy glass as well as preparation method and application thereof
  • High-hardness high-Young-modulus oxide high-entropy glass as well as preparation method and application thereof

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Experimental program
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Embodiment 1

[0058] This embodiment provides a high-hardness high-Young's modulus oxide high-entropy glass and a preparation method thereof. The high-hardness high-Young's modulus oxide high-entropy glass includes the following components: TiO 2 28.22mol%, ZrO 2 8.75mol%, Y 2 o 3 4.83mol%, Al2 o 3 39.43mol%, Gd 2 o 3 18.77 mol%.

[0059] Described preparation method comprises the steps:

[0060] (1) The TiO of formula quantity 2 , ZrO 2 , Y 2 o 3 、Al 2 o 3 and Gd 2 o 3 The powder is mixed evenly to obtain a raw material mixture, which is pressed into a block under a pressure of 10MPa, and then divided into glass raw material blocks with a quality of 20mg / block of a predetermined size;

[0061] (2) The glass raw material block obtained in step (1) is subjected to containerless melting-solidification treatment: the glass raw material block is stably suspended in the air, and then heated to a molten state with a melt temperature of 2700°C, and then heated at 250K / s cooling...

Embodiment 2

[0063] This embodiment provides a high-hardness high-Young's modulus oxide high-entropy glass and its preparation method, in addition to Gd 2 o 3 Replace with Sm 2 o 3 , other conditions are exactly the same as in Example 1, and the corresponding XRD spectrum is as figure 1 shown.

Embodiment 3

[0065] This embodiment provides a high-hardness high-Young's modulus oxide high-entropy glass and its preparation method, in addition to Gd 2 o 3 Replace with La 2 o 3 , other conditions are exactly the same as in Example 1, and the corresponding XRD spectrum is as figure 1 shown.

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Abstract

The invention belongs to the technical field of oxide glass materials, and particularly discloses high-hardness high-Young-modulus oxide high-entropy glass as well as a preparation method and application thereof, and the oxide high-entropy glass comprises TiO2, ZrO2, Y2O3, Al2O3 and other fifth oxides. The high-hardness high-Young-modulus oxide high-entropy glass has excellent hardness and Young modulus, the hardness is larger than or equal to 8 GPa and can reach up to 12.58 GPa, the Young modulus is larger than or equal to 100 GPa and can reach up to 177.9 GPa, the falling resistance and abrasion resistance can be effectively improved, the high-hardness high-Young-modulus oxide high-entropy glass further has excellent optical performance, the maximum transmittance of visible light of 400-800 nm is larger than 80%, and the high-hardness high-Young-modulus oxide high-entropy glass has huge application value in intelligent equipment, touch panels and precision instruments.

Description

technical field [0001] The invention belongs to the technical field of oxide glass materials, and relates to an oxide glass and its preparation method and application, in particular to a high-hardness, high Young's modulus oxide high-entropy glass, its preparation method and application. Background technique [0002] As a traditional inorganic non-metallic material, glass is widely used in the fields of construction, automobile, electronics and instrumentation due to its good permeability. However, with the development of science and technology, especially the popularization of smart devices, higher requirements are placed on the mechanical properties of glass. Improving the hardness and Young's modulus of the glass can effectively improve the drop resistance and wear resistance of the screen of the smart device, reduce the thickness of the screen, reduce the volume of the device, increase the transmittance and improve the visual effect. In smart devices, touch panels And p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/12C03B11/00C03B32/00
CPCC03C3/127C03B11/00C03B32/00
Inventor 李建强郭永昶张英冯少尉
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI