Mullite crystal whisker doped corundum-mullite load bearing board and preparation method thereof

The invention relates to a mullite crystal whisker doped corundum-mullite load bearing board. The mullite crystal whisker doped corundum-mullite load bearing board comprises the following raw materials in parts by mass: 35-55 parts of corundum, 20-30 parts of mullite, 20-40 parts of aluminum oxide micro powder, 5-15 parts of kaolin, and 1-5 parts of mullite crystal whiskers. The invention also provides a preparation method of the mullite crystal whisker doped corundum-mullite load bearing board. The mullite crystal whisker doped corundum-mullite load bearing board provided by the invention hasthe advantages of good thermal shock resistance, high-temperature resistance, high strength, high hardness and corrosion resistance, and has a good use effect, long service life and simple preparation. 本发明涉及种莫来石晶须掺杂刚玉-莫来石承烧板，所述莫来石晶须掺杂刚玉-莫来石承烧板包括以下质量份数的原料：刚玉35～55份、莫来石20～30份、氧化铝微粉20～40份、高岭土5～15份、莫来石晶须1～5份。本发明还提供种莫来石晶须掺杂刚玉-莫来石承烧板的制造方法。本发明的莫来石晶须掺杂刚玉-莫来石承烧板具有抗热震性好、耐高温、强度高、硬度大、耐腐蚀的优点，且使用效果好，使用寿命长，制备简单。