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Nano ZrO2 toughened high-alumina refractory brick as well as preparation method and application thereof
The invention relates to a nano ZrO2 toughened high-alumina refractory brick as well as a preparation method and application thereof, and belongs to the technical field of refractory materials. The refractory brick comprises the following components in percentage by weight: 30-60% of fused compact corundum with the particle size of 0.5-3 mm, 10-30% of fused compact corundum with the particle size of 23-106 microns, 2-20% of alumina micro powder with the particle size of 0.5-6 microns, 2-20% of nano zirconia with the particle size of 20-400 nm, a binder and water. According to the refractory brick, Si-containing components such as SiO2, SiC and SiAlON in a traditional refractory brick are replaced with the high-aluminum electro-fused compact corundum and the aluminum oxide micro powder, the refractory brick is prevented from being easily eroded by water vapor and hydrogen at the high temperature, the stability at the high temperature is greatly improved, and meanwhile the breaking strength of the finished brick is enhanced due to the addition of the nano ZrO2. The refractory brick provides important support for development and application of a hydrogen metallurgy technology, and the preparation method of the refractory brick is simple, easy to operate, low in equipment requirement and suitable for expanded production.
本发明涉及一种纳米ZrO2增韧高铝质耐火砖及其制备方法和应用，属于耐火材料技术领域。该耐火砖按重量百分比计，包括如下组分：粒度为0.5～3mm的电熔致密刚玉30～60％、粒度为23～106μm的电熔致密刚玉10～30％、粒度为0.5～6μm的氧化铝微粉2～20％、粒度为20～400nm的纳米氧化锆2～20％、粘结剂和水。该耐火砖采用高铝质的电熔致密刚玉和氧化铝微粉代替了传统耐火砖中SiO2、SiC、SiAlON等含Si元素的成分，避免了高温下易受水蒸气和氢气的侵蚀，极大地提高了高温下的稳定性，同时纳米ZrO2的添加增强了成品砖的抗折强度。该耐火砖对氢冶金技术的开发和应用提供重要支撑，其制备方法简单，易操作，对设备要求不高，适合扩大化生产。
Nano ZrO2 toughened high-alumina refractory brick as well as preparation method and application thereof
The invention relates to a nano ZrO2 toughened high-alumina refractory brick as well as a preparation method and application thereof, and belongs to the technical field of refractory materials. The refractory brick comprises the following components in percentage by weight: 30-60% of fused compact corundum with the particle size of 0.5-3 mm, 10-30% of fused compact corundum with the particle size of 23-106 microns, 2-20% of alumina micro powder with the particle size of 0.5-6 microns, 2-20% of nano zirconia with the particle size of 20-400 nm, a binder and water. According to the refractory brick, Si-containing components such as SiO2, SiC and SiAlON in a traditional refractory brick are replaced with the high-aluminum electro-fused compact corundum and the aluminum oxide micro powder, the refractory brick is prevented from being easily eroded by water vapor and hydrogen at the high temperature, the stability at the high temperature is greatly improved, and meanwhile the breaking strength of the finished brick is enhanced due to the addition of the nano ZrO2. The refractory brick provides important support for development and application of a hydrogen metallurgy technology, and the preparation method of the refractory brick is simple, easy to operate, low in equipment requirement and suitable for expanded production.
本发明涉及一种纳米ZrO2增韧高铝质耐火砖及其制备方法和应用，属于耐火材料技术领域。该耐火砖按重量百分比计，包括如下组分：粒度为0.5～3mm的电熔致密刚玉30～60％、粒度为23～106μm的电熔致密刚玉10～30％、粒度为0.5～6μm的氧化铝微粉2～20％、粒度为20～400nm的纳米氧化锆2～20％、粘结剂和水。该耐火砖采用高铝质的电熔致密刚玉和氧化铝微粉代替了传统耐火砖中SiO2、SiC、SiAlON等含Si元素的成分，避免了高温下易受水蒸气和氢气的侵蚀，极大地提高了高温下的稳定性，同时纳米ZrO2的添加增强了成品砖的抗折强度。该耐火砖对氢冶金技术的开发和应用提供重要支撑，其制备方法简单，易操作，对设备要求不高，适合扩大化生产。
Nano ZrO2 toughened high-alumina refractory brick as well as preparation method and application thereof
一种纳米ZrO2增韧高铝质耐火砖及其制备方法和应用
GUAN XIAOSHI (author) / ZHANG ZHIMIN (author) / BAI SHUXIA (author) / DENG AO (author) / ZHU KE (author) / FENG KE (author) / XU SHIXIN (author) / LIU ZHIWEI (author)
2022-12-16
Patent
Electronic Resource
Chinese
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