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Glass ceramic material and preparation method thereof

A glass-ceramic and material technology, applied in the field of glass-ceramic material of optical glass and its preparation, to achieve the effect of excellent optical properties

Inactive Publication Date: 2015-03-04
华文蔚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the research on the luminescence properties of borosilicate glass by rare earth ions is relatively common. However, there are few reports in the literature that the combination of oxide ceramics containing rare earth ions and glass materials can be used to study the luminescence properties of glass ceramics. Moreover, The existing glass-ceramic preparation methods mostly use melting to carry out

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) preparation comprises the first glass of following composition (mass %, by oxide):

[0029] 30% by mass of glass material, 40% of oxide ceramic powder, 30% by mass of alkaline earth metal oxide;

[0030] (2) The first heat treatment time at 650°C is 10h, the second heat treatment time at 680°C is 20h, and the third heat treatment time at 700°C is 68h.

[0031] According to tests, the crystallization rate of the glass phase in the ceramic sintered body obtained by sintering reaches 55% by volume ratio, and the high-refractive-index filler powder is a ceramic whose refractive index exceeds 1.95.

Embodiment 2

[0033] (1) preparation comprises the first glass of following composition (mass %, by oxide):

[0034] 35% by mass of glass material, 45% of oxide ceramic powder, 20% by mass of alkaline earth metal oxide;

[0035] (2) The first heat treatment time at 660°C is 12h, the second heat treatment time at 680°C is 25h, and the third heat treatment time at 750°C is 60h.

[0036] According to the test, the crystallization ratio of the glass phase in the ceramic sintered body obtained by sintering reaches 52% by volume ratio, and the high-refractive-index filler powder is a ceramic whose refractive index exceeds 1.95.

Embodiment 3

[0038] (1) preparation comprises the first glass of following composition (mass %, by oxide):

[0039] 30% by mass of glass material, 50% of oxide ceramic powder, 20% by mass of alkaline earth metal oxide;

[0040] (2) The first heat treatment time at 680°C is 15h, the second heat treatment time at 700°C is 20h, and the third heat treatment time at 750°C is 70h.

[0041] According to tests, the crystallization rate of the glass phase in the ceramic sintered body obtained by sintering reaches 53% by volume ratio, and the high-refractive-index filler powder is a ceramic whose refractive index exceeds 1.97.

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Abstract

The invention relates to a glass ceramic material and a preparation method thereof. The preparation method comprises the following steps: (1) preparing raw materials according to the following mass ratio: 30-40% of a glass material, 30-50% of oxide ceramic powders and 10-30% of alkaline earth metal oxide; (2) carrying out a first heat treatment on the raw materials at 650-700 DEG C, carrying out a second heat treatment at 680-750 DEG C and carrying out a third heat treatment at 700-750 DEG C to obtain the glass ceramic material. The glass ceramic baseplate prepared by adopting the preparation method is high in reflectivity and low in crystallization rate of the glass phase, and has the excellent luminescence property.

Description

technical field [0001] The invention relates to a glass ceramic substance and a preparation method thereof, in particular to a glass ceramic substance applicable to optical glass and a preparation method thereof. Background technique [0002] With the rapid development of information technology and optoelectronic technology, people pay more and more attention to the special properties of phosphors, which exist in the form of crystalline powder, single crystal, film, ceramics, glass, etc. Because glass has the advantages of being uniform, transparent, easy to process into various shapes, and can be doped at a higher concentration, it has gradually become a good matrix material for inorganic luminescence, and its use is becoming more and more extensive. [0003] Light sources are generally divided into discharge lamps and solid-state lamps, where heat radiators dominate in general lighting and automotive applications, such as halogen lamps. Additionally, solid state light sou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00
Inventor 华文蔚
Owner 华文蔚
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