| abstract |
The objective is to provide a ceramic with a small thermal expansion coefficient and excellent mechanical strength. The present invention is an aluminum magnesium titanate - alumina composite ceramic characterized by the fact that it contains aluminum magnesium titanate and alumina, and has x satisfying 0 < x GBP 1 and a satisfying 0.4x GBP a < 2x when the element composition ratio of Al, Mg, and Ti is represented by compositional formula (1) (1) |