Unlock instant, AI-driven research and patent intelligence for your innovation.

Carbon/lithium disilicate composite ceramic material and preparation method thereof

A technology of lithium disilicate and composite ceramics, which is applied in the field of carbon/lithium disilicate composite ceramic materials and their preparation, and achieves the effects of low production cost, low equipment requirements and good chemical stability

Inactive Publication Date: 2014-07-02
HARBIN INST OF TECH AT WEIHAI
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on carbon / lithium disilicate composite ceramic materials has not been reported yet.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: a kind of carbon / lithium disilicate composite ceramic material, it uses SiO 2 , Li 2 O.P 2 o 5 , ZnO, CaO, K 2 O and carbon powder are raw materials, and the mass percentage of each composition is SiO 2 68.4%, Li 2 O 17.1%, P 2 o 5 4.9%, ZnO 3.1%, CaO 2.1%, K 2 O 3.9%, amorphous carbon powder 0.5%; conduct crystallization heat treatment on the glass mixture composed of the above oxides at 1400oC-1500oC to obtain the basic glass body, mix with carbon powder and ball mill, then sinter by hot pressing, high temperature demoulding and furnace After cooling, a carbon / lithium disilicate composite ceramic material is obtained.

[0013] The preparation method of the above-mentioned carbon / lithium disilicate composite ceramic material of the present invention comprises the following steps:

[0014] (1) Weigh SiO in proportion 2 , Li 2 O.P 2 o 5 , ZnO, CaO, K 2 O and carbon powder, the SiO 2 , Li 2 O.P 2 o 5 , ZnO, CaO, K 2 O the powdered raw ma...

Embodiment 2

[0019] Embodiment 2: a kind of carbon / lithium disilicate composite ceramic material, it uses SiO 2 , Li 2 O.P 2 o 5 , ZnO, CaO, K 2 O and carbon powder are raw materials, and the mass percentage of each composition is SiO 2 67.6%, Li 2 O 16.9%, P 2 o 5 5.3%, ZnO 2.4%, CaO 2.3%, K 2 O 5.3%, graphite powder 0.2%; crystallization heat treatment is carried out on the glass mixture composed of the above oxides at 1400oC-1500oC to obtain the basic glass body, which is mixed with carbon powder and ball milled, then sintered by hot pressing, demolded at high temperature and cooled with the furnace. That is, a carbon / lithium disilicate composite ceramic material is obtained.

[0020] The preparation method of the above-mentioned carbon / lithium disilicate composite ceramic material of the present invention comprises the following steps:

[0021] (1) Weigh SiO in proportion 2 , Li 2 O.P 2 o 5 , ZnO, CaO, K 2 O and carbon powder, the SiO 2 , Li 2 O.P 2 o 5 , ZnO, CaO, ...

Embodiment 3

[0026] Embodiment 3: a kind of carbon / lithium disilicate composite ceramic material, it uses SiO 2 , Li 2 O.P 2 o 5 , ZnO, CaO, K 2 O and carbon powder are raw materials, and the mass percentage of each composition is SiO 2 71.8%, Li 2O 18.0%, P 2 o 5 3.1%, ZnO 2.4%, CaO 1.6%, K 2 O 2.4%, graphite powder 0.7%; crystallize and heat treat the glass mixture composed of the above oxides at 1400oC-1500oC to obtain the basic glass body, mix it with carbon powder and ball mill it, then sinter it by hot pressing, demould at high temperature and cool with the furnace. That is, a carbon / lithium disilicate composite ceramic material is obtained.

[0027] The preparation method of the above-mentioned carbon / lithium disilicate composite ceramic material of the present invention comprises the following steps:

[0028] (1) Weigh SiO in proportion 2 , Li 2 O.P 2 o 5 , ZnO, CaO, K 2 O and carbon powder, the SiO 2 , Li 2 O.P 2 o 5 , ZnO, CaO, K 2 O the powdered raw material...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
flexural strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a carbon / lithium disilicate composite ceramic material and a preparation method thereof. The preparation method comprises the steps: taking SiO2, Li2O, P2O5, ZnO, CaO, K2O and carbon power as raw materials, by mass: 67.6-73.6% of SiO2, 16.9-18.7% of Li2O, 2.3-5.3% of P2O5, 0.8-3.1% of ZnO, 1.1-2.3% of CaO, 1.8-5.3% of K2O, and 0.2-0.9% of the carbon powder; carrying out crystallization heat treatment of a glass mixture composed of the above oxides at the temperature of 1400 DEG C-1500 DEG C to obtain a basic glass body, mixing and ball-milling with the carbon powder, then carrying out hot-pressing sintering, demolding at the high temperature, and cooling along with a furnace to obtain the carbon / lithium disilicate composite ceramic material. The material has relatively good mechanical properties, relatively high strength and good chemical stability, has better wear-resistant performance and better self-lubricating performance which are different from other lithium disilicate composite materials, and is suitable for being used as a dressing material of diamond blades and diamond grinding wheels.

Description

technical field [0001] The invention relates to a composite ceramic material and a preparation method thereof, in particular to a carbon / lithium disilicate composite ceramic material with lithium disilicate as the main crystal phase and a preparation method thereof. Background technique [0002] Today, with the rapid development of science and technology, ceramic materials are widely used in the fields of military, machinery, aerospace and energy, and the demand for materials in various aspects such as wear resistance, corrosion resistance, high temperature resistance, stiffness, hardness, and strength is increasing. improve. In recent decades, researchers have conducted long-term exploration and research on the crystallization mechanism, preparation technology and composition design technology of glass-ceramics. Lithium disilicate glass-ceramic is a kind of lithium disilicate (Li 2 Si 2 o 5 ) is a general term for a series of glass-ceramics with the main crystal phase. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/12
Inventor 覃春林甘笑雨温广武王春雨王鑫宇宋亮夏龙
Owner HARBIN INST OF TECH AT WEIHAI