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Method for manufacturing high-strength zirconia ceramic core insert

A zirconia ceramic, high-strength technology, applied in the field of ceramic electronic components, can solve the problems of large insertion loss of optical fiber, unsmooth insertion of optical fiber into the inner hole, low precision and strength, etc., to achieve fast degreasing speed and excellent thermal shock resistance The effect of high performance and precision

Active Publication Date: 2015-10-07
NINGBO BRIGHT PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Zirconia ceramics can better meet the above requirements. At present, partially stabilized zirconia ceramics (PSZ) are widely used, specifically, single yttrium doped zirconia-based materials. As time goes by, the material itself will Structural changes occur, from tetragonal phase to monoclinic phase. With the change of phase structure, the crystal grains also become coarser and larger, resulting in poor surface finish, which causes the optical fiber to not penetrate smoothly into the inner hole, or causes the lateral deviation of the butt optical fiber Cause insertion loss to increase or fail
Therefore, the zirconia ceramic ferrule in the prior art is easy to deform, and has low precision and strength

Method used

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  • Method for manufacturing high-strength zirconia ceramic core insert
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  • Method for manufacturing high-strength zirconia ceramic core insert

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preparation example Construction

[0036] The embodiment of the present invention discloses a method for preparing a high-strength zirconia ceramic ferrule, which includes the following steps:

[0037] Step a) mixing nano titanium dioxide, aluminum oxide, scandium oxide, cerium oxide and zirconium oxide, adding paraffin wax after pre-calcination, mixing by ball milling, and obtaining partially stabilized zirconium oxide powder after sieving;

[0038] Step b) Add the partially stabilized zirconia powder and polystyrene into the internal mixer, add polyethylene glycol and microcrystalline wax after mixing, add ethylene-vinyl acetate copolymer, zinc stearate, SEBS elastic Body (polystyrene-polyethylene-polybutylene-polystyrene) and polyaldehyde resin, stir, heat up to 140-150°C, then add adipic acid dioctanoic acid, heat up to 160-180°C after stirring, banbury After cooling, a gelatinous substance is obtained;

[0039] Step c) compressing the gelatinous substance into tablets, pulverizing it, and obtaining a blan...

Embodiment 1

[0081] Step 1. Mix 1 part by weight of nano-titanium dioxide, 2 parts by weight of alumina, 1 part by weight of scandium oxide, 2 parts by weight of cerium oxide and 94 parts by weight of zirconia, and then pre-sinter at 700 ° C After 2 hours, 3 parts by weight of paraffin was added for ball milling, mixing and sieving to obtain a partially stabilized zirconia powder substrate.

[0082] Step 2. Mix the partially stabilized zirconia powder substrate prepared above with organic carriers such as binders, surface active agents, and plasticizers in a certain proportion. The raw materials used in this step include in parts by weight:

[0083]

[0084]

[0085] Raise the temperature of the internal mixer to 120°C, then add the above-mentioned parts by weight of partially stabilized zirconia powder into the above-mentioned internal mixer, mix and stir for 10 minutes, so that polystyrene is evenly included on the powder particles, and then add the corresponding parts by weight of ...

Embodiment 2

[0108] Step 1. Mix 1 part by weight of nano titanium dioxide, 2 parts by weight of alumina, 1 part by weight of scandium oxide, 2 parts by weight of cerium oxide and 94 parts by weight of zirconia, and then pre-sinter at 620 ° C After 1.2 hours, 3 parts by weight of paraffin was added for ball milling, mixing and sieving to obtain a partially stabilized zirconia powder substrate.

[0109] Step 2. Mix the partially stabilized zirconia powder base material prepared above with organic carriers such as binders, surface active agents, and plasticizers in a certain proportion. The raw materials used in this step include in parts by weight:

[0110]

[0111]

[0112] Raise the temperature of the internal mixer to 120°C, then add the above-mentioned partially stabilized zirconia powder and polystyrene into the above-mentioned internal mixer, mix and stir for 10-20 minutes, so that the polystyrene is evenly included on the powder particles, and then Add the polyethylene glycol of...

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Abstract

The invention provides a method for manufacturing a high-strength zirconia ceramic core insert and a method for preparing part of zirconia stabilizing powder for the high-strength zirconia ceramic core insert. According to the method for manufacturing the high-strength zirconia ceramic core insert, firstly, scandia and cerium oxide are made to react with zirconia, nano titania and aluminum oxide are mixed at the same time, so that the linear expansion coefficient and thermal stress performance which are more excellent than that of pure zirconia ceramic are obtained, in this way, the material can have high strength, high tenacity and excellent thermal shock resistance, and deformation is unlikely to occur; secondly, an SEBS elastomer, polrvinyl benzene, aldehyde resin and the like are inserted into part of zirconia stabilizing powder for polymerization, so that an interspersed network structure is formed, a stable structural system is obtained, and deformation is unlikely to occur; thirdly, the aldehyde resin and the polrvinyl benzene are taken as main binding agents, in this way, the strength of formed blank is high, conformality is good, the degreasing speed is high, and the precision is high; fourthly, stearate radical is removed during sintering of zinc stearate, so that the zinc stearate is oxidized into zinc oxide, and thus the strength of the core insert is improved.

Description

technical field [0001] The invention relates to the technical field of ceramic electronic components, in particular to a method for preparing a high-strength zirconia ceramic ferrule. Background technique [0002] In today's world, a profound change is taking place in the field of communication. The development of optical fiber communication technology has become the driving force behind this change. Optical fiber communication has become the most dazzling "sunrise industry" in the new century. Optical fiber connectors are the most widely used non-light source device. The optical fiber connector realizes the continuous transmission of optical signals in the optical fiber through the precise docking of two ferrules. Its core and basic device is the ferrule, which acts as a medium for connection, conversion, and data transmission. It is a series of optical communication products. The most basic and important passive components. The ferrule should have extremely high dimensio...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622
Inventor 张佳斌
Owner NINGBO BRIGHT PHOTOELECTRIC TECH
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