Preparation method of calcium doped lead titanate ceramic fiber

A ceramic fiber, lead titanate technology, applied in the chemical characteristics of fibers, textiles and papermaking, etc., can solve the problems of lead titanate ceramic difficulties, large coercive field, sample fragmentation and other problems, achieve high uniformity, reduce Calcination temperature, easy modification effect
CN107164841AInactive Publication Date: 2017-09-15HEBEI CHEM & PHARMA COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI CHEM & PHARMA COLLEGE
Publication Date
2017-09-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method of calcium doped lead titanate ceramic fiber, and the preparation method is characterized by comprising the following specific steps: (1) preparation of stable sol; (2) drawing and drying; (3) decomposition of dry gel fiber; and (4) sintering. The sintering conditions are as follows: the sintering temperature is 750 DEG C, the sintering time is 60min, and the heating rate is 2 DEG C / min. The preparation method has scientific and reasonable design, simple process, easy operation, low cost, and other advantages, the ceramic fiber prepared by the method has high strength, superior performance, smooth surface, high density, low tendency to fragmentation and other advantages, and the method has the advantages of convenient operation and easy implementation, and is a highly innovative preparation method of the calcium doped lead titanate ceramic fiber.
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Description

technical field

[0001] The invention relates to a method for preparing ceramic fibers, in particular to a method for preparing calcium-doped lead titanate ceramic fibers. Background technique

[0002] Lead titanate (PbTiO 3 ) is a ferroelectric material with a tetragonal perovskite structure, which has high Curie temperature, large axial ratio, small relative permittivity, large piezoelectric anisotropy, good stability, and easy adjustment of performance parameters, etc. Advantages, it is a very important ferroelectric material, and fiber is an ideal geometry for reducing heat capacity in small devices and improving response and sensitivity, which expands its use in micro devices, so it has a wide range of applications prospect. However, with the development of science and technology, the requirements for materials are getting higher and higher. Not only do fibers have good crystallization properties and precise stoichiometric ratios, but they also require fibers to have s...

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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