US 2026/0132087 A1Published application

High zirconia brick, and preparation process and use thereof

AssigneeZhengzhou Fangming High-Temperature Ceramic New Material Co., Ltd.

InventorsXinxing LIANG, Xiaogang LIU, Qixing LIANG, Yali BA, Ning ZHANG, Yalong LIU, Weifeng SHEN, Mengzhen GE, Yahui WU, Chongfang FAN

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Abstract

The present disclosure discloses a high zirconia brick and a preparation process and use thereof. The high zirconia brick includes the following components in percentage by weight: 40-99% of zirconia, 0.1-60% of alumina, and 0.1-40% of yttria, iron oxide, titania, magnesia, calcia, and silica in total. In the present disclosure, heating and annealing cooling are controlled by means of curved temperature control, and a high zirconia brick prepared has uniform and segregation-free distribution of all elements and consistent overall density, without defects such as needle-like pores, bubble retention, and surface cavities. The high zirconia brick prepared by the technological method has features of short delivery cycles of products and customizable production.

Claims10

Dependent claims

A high zirconia brick, wherein the high zirconia brick comprises the following components in percentage by weight:

40-99% of zirconia, 0.1-60% of alumina, and 0.1-40% of yttria, iron oxide, titania, magnesia, calcia, and silica in total;
or the high zirconia brick comprises the following components in percentage by weight:
40-99% of zirconia, 0.1-60% of magnesia, and 0.1-40% of yttria, iron oxide, titania, calcia, and silica in total;
or the high zirconia brick comprises the following components in percentage by weight:
40-99% of zirconia, 0.1-60% of calcia, and 0.1-40% of magnesia, yttria, iron oxide, titania, and silica in total;
or the high zirconia brick comprises the following components in percentage by weight:
40-99% of zirconia, 0.1-60% of chromia, and 0.1-40% of calcia, magnesia, yttria, iron oxide, titania, and silica in total;
or the high zirconia brick comprises the following components in percentage by weight:
40-99% of zirconia, 0.1-60% of beryllia, and 0.1-40% of calcia, magnesia, yttria, iron oxide, titania, and silica in total.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/383,818Filed 10 Nov 2025
Priority: CN 202411611037.812 Nov 2024
Published: 14 May 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification42 codes

C04B 35/48
Based on oxide ceramics: based on zirconium or hafnium oxides, zirconates, zircon or hafnates
C04B 35/484
Based on zirconium or hafnium oxides, zirconates, zircon or hafnates: refractories by fusion casting
C03B 5/43
Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls: use of materials for furnace walls, e.g.…
C04B 35/05
Based on magnesium oxide: refractories by fusion casting