Low-lithium-matrix heat resisting ceramic materials
A ceramic material and lithium technology, applied in the field of low-lithium heat-resistant ceramic materials, can solve the problems of high price and unstable supply of spodumene, and achieve the effect of reducing the cost of raw materials and improving the heat resistance.
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[0008] Example 1: The weight percentage of each chemical component in the ceramic blank is: SiO 2 50%~65%, Al 2 O 3 22%~32%, Fe 2 O 3 0.80%~1.20%, Ti 2 O 0.05%~0.15%, CaO1.60%~2.50%, MgO0.60%~1.20%, K 2 O 0.40%~0.80%, Na 2 O 0.15%~0.50% and Li 2 O1.20%~2.20%, and balance 0.20%~0.60%, loss on ignition 7.00%~10.00%. The weight percentage of each chemical component in the ceramic blank is within this range, and the heat resistance of the low-lithium heat-resistant ceramic material can meet the requirements.
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[0009] Example 2: The weight percentage of each chemical component in the ceramic blank is: SiO 2 51.41%~62.84%, Al 2 O 3 24.44%~29.88%, Fe 2 O 3 0.91%~1.12%, Ti 2 O 0.08%~0.10%, CaO1.85%~2.26%, MgO 0.82%~1.01%, K 2 O 0.54%~0.67%, Na 2 O 0.27%~0.33% and Li 2 O 1.52%~1.84%, and the balance 0.24%~0.30%, loss on ignition 7.88%~9.64%. The weight percentage of each chemical component in the ceramic blank is within this range, and the heat resistance of the low-lithium heat-resistant ceramic material can meet the optimal requirements.
[0010] Best embodiment 3: The weight percentage of each chemical component in the ceramic blank is: SiO 2 57.13%, Al 2 O 3 27.16%, Fe 2 O 3 1.02%, Ti 2 O 0.09%, CaO 2.06%, MgO 0.92%, K 2 O0.61%, Na 2 O 0.3% and Li 2 O 1.68%, the balance is 0.27%, and the ignition loss is 8.76%. The heat resistance of low-lithium heat-resistant ceramic materials can meet the best requirements.
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