Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-hardness ceramic and production process thereof
The invention discloses high-hardness ceramic and a production process thereof, and belongs to the technical field of ceramic manufacturing, ZrO2 powder, nano ZrB2 powder dispersion liquid, Al2O3 powder and Y2O3 powder are mixed, ball-milled, dried and sieved by a 200-mesh sieve, and ceramic powder is obtained; the ceramic powder is poured into a graphite mold for vacuum hot pressing sintering, and the high-hardness ceramic is obtained. The nano ZrB2 powder dispersion liquid is prepared by the following steps: adding 1 part by weight of polyvinylpyrrolidone and 6-8 parts by weight of a polycarboxylate superplasticizer into 10-13 parts by weight of water, stirring and dissolving, then adding 1.8-2.3 parts by weight of nano ZrB2 powder, and carrying out ultrasonic dispersion for 10-15 minutes to obtain the nano ZrB2 powder dispersion liquid. According to the invention, the agglomeration phenomenon of the nano ZrB2 powder is overcome through the nano ZrB2 powder dispersion liquid, and the hardness and high-temperature wear resistance of a ceramic matrix are improved.
本发明公开了一种高硬度陶瓷及其生产工艺，属于陶瓷制造技术领域，将ZrO2粉末、纳米ZrB2粉末分散液、Al2O3粉末、Y2O3粉末混合球磨、干燥、过200目筛，得陶瓷粉体；将陶瓷粉体倒入石墨模具中进行真空热压烧结，得一种高硬度陶瓷；所述纳米ZrB2粉末分散液包括如下步骤制备：按重量份计，将1份聚乙烯吡咯烷酮、6‑8份聚羧酸高效减水剂加入10‑13份水中，搅拌溶解后加入1.8‑2.3份纳米ZrB2粉末，超声分散10‑15min，得纳米ZrB2粉末分散液。本发明通过纳米ZrB2粉末分散液克服了纳米ZrB2粉末团聚现象，提高了陶瓷基体的硬度及耐高温磨损性。
High-hardness ceramic and production process thereof
The invention discloses high-hardness ceramic and a production process thereof, and belongs to the technical field of ceramic manufacturing, ZrO2 powder, nano ZrB2 powder dispersion liquid, Al2O3 powder and Y2O3 powder are mixed, ball-milled, dried and sieved by a 200-mesh sieve, and ceramic powder is obtained; the ceramic powder is poured into a graphite mold for vacuum hot pressing sintering, and the high-hardness ceramic is obtained. The nano ZrB2 powder dispersion liquid is prepared by the following steps: adding 1 part by weight of polyvinylpyrrolidone and 6-8 parts by weight of a polycarboxylate superplasticizer into 10-13 parts by weight of water, stirring and dissolving, then adding 1.8-2.3 parts by weight of nano ZrB2 powder, and carrying out ultrasonic dispersion for 10-15 minutes to obtain the nano ZrB2 powder dispersion liquid. According to the invention, the agglomeration phenomenon of the nano ZrB2 powder is overcome through the nano ZrB2 powder dispersion liquid, and the hardness and high-temperature wear resistance of a ceramic matrix are improved.
本发明公开了一种高硬度陶瓷及其生产工艺，属于陶瓷制造技术领域，将ZrO2粉末、纳米ZrB2粉末分散液、Al2O3粉末、Y2O3粉末混合球磨、干燥、过200目筛，得陶瓷粉体；将陶瓷粉体倒入石墨模具中进行真空热压烧结，得一种高硬度陶瓷；所述纳米ZrB2粉末分散液包括如下步骤制备：按重量份计，将1份聚乙烯吡咯烷酮、6‑8份聚羧酸高效减水剂加入10‑13份水中，搅拌溶解后加入1.8‑2.3份纳米ZrB2粉末，超声分散10‑15min，得纳米ZrB2粉末分散液。本发明通过纳米ZrB2粉末分散液克服了纳米ZrB2粉末团聚现象，提高了陶瓷基体的硬度及耐高温磨损性。
High-hardness ceramic and production process thereof
一种高硬度陶瓷及其生产工艺
CAO SHULONG (Autor:in) / HUANG BINGFENG (Autor:in) / ZHANG XIA (Autor:in)
20.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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