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Wear-resistant ceramic clay and preparation process thereof
The invention belongs to the field of ceramic technologies, and particularly discloses wear-resistant ceramic clay and a preparation technology thereof.The wear-resistant ceramic clay is prepared from, by weight, 40-50 parts of kaolin, 10-15 parts of bentonite, 10-13 parts of ferric oxide, 6-9 parts of ferroferric oxide, 8-13 parts of talcum powder, 5-10 parts of tetragonal zirconia polycrystals, 1-3 parts of composite additives and 2-4 parts of dispersing agents. Wherein the grain size range of the tetragonal zirconium oxide polycrystal is 0.5-1.3 m, and the dispersing agent can be one of ammonium polyacrylate or polyvinylpyrrolidone; the tetragonal zirconium oxide polycrystal modified by the composite additive is added into the ceramic clay to improve the wear resistance of the ceramic clay, CaO, MgO and SiO2 in the composite additive are used for reducing the stress of the tetragonal zirconium oxide polycrystal between microcosmic crystal grains and improving the bonding strength of the grain boundary, Sm2O3 can relieve stress concentration at the grain boundary due to different thermal expansion coefficients, and the wear resistance of the ceramic clay is improved. The grain boundary bonding strength is improved, the wear resistance is ensured, and the wear resistance and strength of the prepared ceramic product are improved.
本发明属于陶瓷工艺领域，具体公开了一种耐磨损的陶瓷土及其制备工艺，按重量组分计，包括以下组分：高岭土40‑50份、膨润土10‑15份、三氧化二铁10‑13份、四氧化三铁6‑9份、滑石粉8‑13份、四方氧化锆多晶体5‑10份、复合添加剂1‑3份和分散剂2‑4份，其中四方氧化锆多晶体的晶粒尺寸范围为0.5‑1.3µm，分散剂可选为聚丙烯酸铵或聚乙烯吡咯烷酮中的一种；在陶瓷土中加入由复合添加剂改性后的四方氧化锆多晶体用以提升陶瓷土的耐磨性能，复合添加剂中的CaO、MgO、SiO2用于降低四方氧化锆多晶体在微观上晶粒之间的应力，提高晶界的结合强度，Sm2O3能够缓解由于热膨胀系数不同而使晶界处的应力集中，提高晶界结合强度，保证耐磨性能，使制备得到的陶瓷产品的耐磨性与强度得到提高。
Wear-resistant ceramic clay and preparation process thereof
The invention belongs to the field of ceramic technologies, and particularly discloses wear-resistant ceramic clay and a preparation technology thereof.The wear-resistant ceramic clay is prepared from, by weight, 40-50 parts of kaolin, 10-15 parts of bentonite, 10-13 parts of ferric oxide, 6-9 parts of ferroferric oxide, 8-13 parts of talcum powder, 5-10 parts of tetragonal zirconia polycrystals, 1-3 parts of composite additives and 2-4 parts of dispersing agents. Wherein the grain size range of the tetragonal zirconium oxide polycrystal is 0.5-1.3 m, and the dispersing agent can be one of ammonium polyacrylate or polyvinylpyrrolidone; the tetragonal zirconium oxide polycrystal modified by the composite additive is added into the ceramic clay to improve the wear resistance of the ceramic clay, CaO, MgO and SiO2 in the composite additive are used for reducing the stress of the tetragonal zirconium oxide polycrystal between microcosmic crystal grains and improving the bonding strength of the grain boundary, Sm2O3 can relieve stress concentration at the grain boundary due to different thermal expansion coefficients, and the wear resistance of the ceramic clay is improved. The grain boundary bonding strength is improved, the wear resistance is ensured, and the wear resistance and strength of the prepared ceramic product are improved.
本发明属于陶瓷工艺领域，具体公开了一种耐磨损的陶瓷土及其制备工艺，按重量组分计，包括以下组分：高岭土40‑50份、膨润土10‑15份、三氧化二铁10‑13份、四氧化三铁6‑9份、滑石粉8‑13份、四方氧化锆多晶体5‑10份、复合添加剂1‑3份和分散剂2‑4份，其中四方氧化锆多晶体的晶粒尺寸范围为0.5‑1.3µm，分散剂可选为聚丙烯酸铵或聚乙烯吡咯烷酮中的一种；在陶瓷土中加入由复合添加剂改性后的四方氧化锆多晶体用以提升陶瓷土的耐磨性能，复合添加剂中的CaO、MgO、SiO2用于降低四方氧化锆多晶体在微观上晶粒之间的应力，提高晶界的结合强度，Sm2O3能够缓解由于热膨胀系数不同而使晶界处的应力集中，提高晶界结合强度，保证耐磨性能，使制备得到的陶瓷产品的耐磨性与强度得到提高。
Wear-resistant ceramic clay and preparation process thereof
一种耐磨损的陶瓷土及其制备工艺
GUO SHUNBO (author)
2024-06-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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