Nickel-cobalt alloy/tetragonal zirconia polycrystalline composite ceramic material and preparation method thereof

A nickel-cobalt alloy and composite ceramic technology, which is applied in the field of nickel-cobalt alloy/tetragonal polycrystalline zirconia composite ceramic materials and their preparation, can solve the problems of hydrogen safety that cannot be ignored, unsuitable for mass production, and high equipment cost, Achieve the effect of low equipment cost, safe preparation process and optimized microstructure
CN104178652AInactive Publication Date: 2014-12-03TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2014-12-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a nickel-cobalt alloy / tetragonal zirconia polycrystalline composite ceramic material and a preparation method thereof. Tetragonal zirconia polycrystalline with 3% by mole of stable Y2O3, namely 3Y-TZP is taken as a base body, nickel-cobalt alloy Ni[1-x]Cox (x is 0.25-0.75) is taken as a second magnetic phase, and the mass percent of raw materials of the alloy is 1%-40%. The composite ceramic with excellent mechanical and magnetic properties is obtained by taking the tetragonal zirconia polycrystalline with stable Y as the base body, adding the magnetic phase of the nickel-cobalt alloy, and performing the two-step method of milling in a reducing atmosphere and sintering in an insert atmosphere. The magnetic property of the alloy is improved by adjusting the content of cobalt in the alloy, meanwhile, the mechanical property of the material is improved by adjusting the additive amount of the alloy in the zirconia base body, and finally the composite material with excellent mechanical and magnetic properties is obtained.
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Description

technical field

[0001] The invention belongs to a ceramic composition characterized by components, in particular to a nickel-cobalt alloy / tetragonal polycrystalline zirconia composite ceramic material and a preparation method thereof. Background technique

[0002] At present, the miniaturization, integration and multifunctionalization of material devices have become the requirements for the development of the material field. For inorganic non-metallic materials, the integration of structure and function of ceramic materials can expand its application in high-tech fields, which has been highly concerned by researchers. Among them, magnetic particles are mixed into structural ceramics as the second phase to form a multi-phase composite ceramic of "magnetic particle dispersed phase / structural ceramic matrix", which has the functions of electromagnetic shielding, interference prevention or wave absorption while taking into account structural performance . The composite materia...

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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