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Anti-corrosion zirconia ceramic and preparation method thereof
The invention discloses anti-corrosion zirconia ceramic and a preparation method thereof. The ceramic is prepared from the following raw materials in parts by weight: 100-120 parts of zirconia, 7-8 parts of kaolin, 10-15 parts of magnesium oxide, 20-30 parts of sodium diethylhexyl sulfosuccinate, 10-20 parts of hydroxyapatite, 10-20 parts of a crosslinking agent and 5-9 parts of an initiating agent. The preparation method of the ceramic comprises the following steps: uniformly mixing the zirconia, the kaolin, the magnesium oxide, the sodium diethylhexyl sulfosuccinate, the hydroxyapatite, the crosslinking agent and the initiating agent; putting into a platinum crucible of which the mass content of rhodium is 10% to 12%; sealing the crucible; keeping the temperature at 1200 to 1300 DEG C and reacting for 2-3 hours; immediately transferring to an annealing furnace; thermally treating for 4-5 hours at the temperature of 200 to 300 DEG C; and slowly cooling to room temperature to obtain the ceramic. The kaolin and the magnesium oxide can form an oligomer with the zirconia; the surface of the zirconia is wetted; particles are crowed inside air holes by surface tension, and sintering is promoted, so the hardness and corrosion resistance of the ceramic are improved.
Anti-corrosion zirconia ceramic and preparation method thereof
The invention discloses anti-corrosion zirconia ceramic and a preparation method thereof. The ceramic is prepared from the following raw materials in parts by weight: 100-120 parts of zirconia, 7-8 parts of kaolin, 10-15 parts of magnesium oxide, 20-30 parts of sodium diethylhexyl sulfosuccinate, 10-20 parts of hydroxyapatite, 10-20 parts of a crosslinking agent and 5-9 parts of an initiating agent. The preparation method of the ceramic comprises the following steps: uniformly mixing the zirconia, the kaolin, the magnesium oxide, the sodium diethylhexyl sulfosuccinate, the hydroxyapatite, the crosslinking agent and the initiating agent; putting into a platinum crucible of which the mass content of rhodium is 10% to 12%; sealing the crucible; keeping the temperature at 1200 to 1300 DEG C and reacting for 2-3 hours; immediately transferring to an annealing furnace; thermally treating for 4-5 hours at the temperature of 200 to 300 DEG C; and slowly cooling to room temperature to obtain the ceramic. The kaolin and the magnesium oxide can form an oligomer with the zirconia; the surface of the zirconia is wetted; particles are crowed inside air holes by surface tension, and sintering is promoted, so the hardness and corrosion resistance of the ceramic are improved.
Anti-corrosion zirconia ceramic and preparation method thereof
PAN LIN GEN (Autor:in) / LIU DAXUE (Autor:in) / GUO YUQIN (Autor:in)
01.07.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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