A connection method for rapid in-situ formation of homogeneous phase alumina ceramics in an atmospheric environment

A technology of alumina ceramics and connection methods, applied in welding equipment, metal processing equipment, manufacturing tools, etc., to achieve the effects of reducing production costs, improving connection efficiency, and consuming less energy
CN103170723BActive Publication Date: 2016-01-13HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
Publication Date
2016-01-13

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Abstract

The invention provides a connection method of rapid in-situ forming same quantity and phase aluminum oxide ceramics in an atmospheric environment, and belongs to the ceramics-ceramics or ceramics-metal connecting field. Rapid wetting of a joint can be achieved in the atmospheric environment, joint internal stress of a composite phase structure is greatly alleviated, and meanwhile the joint is strengthened and use temperature is improved. Compared with a connection method of other ceramics, the connection method of the rapid in-situ forming same quantity and phase aluminum oxide ceramics in the atmospheric environment can obtain excellent performances of high sealing performance (joint jointing rate is larger than or equal to 95%), high intensity (70-90 MPa) and wide service temperature range, and is especially suitable for rapid, efficient and high-strength connection of structures of aluminum oxide ceramics- aluminum oxide ceramics and aluminum oxide ceramics-metal(aluminum, copper, stainless steel, corresponding alloy and the like) which need long time vacuum pressure withstand, high service temperature, high intensity and high corrosion resistance performance.
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Description

technical field

[0001] The invention relates to a connection method for rapid in-situ generation of homogeneous or near-homogeneous phase alumina ceramics in an atmospheric environment, and is especially suitable for applications that require long-term vacuum pressure-resistant sealing, high working temperature, high strength and high corrosion resistance. Fast, efficient and high-strength connections between alumina ceramics-alumina ceramics and alumina ceramics-metal (aluminum, copper, stainless steel and their respective alloys) structures. Background technique

[0002] In recent years, ceramics are widely used in all aspects of production and life because of their high hardness, high strength, low density, low thermal expansion coefficient, good thermal conductivity, and chemical corrosion resistance. For example, in the field of biomedicine, ceramics are mainly used in dentistry, biosensors, and embedded microsystems based on their good high temperature resistance and c...

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
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