Lowering hot isostatic pressing temperature of ultrafine‐grained MgAl2O4 transparent ceramics by two‐step pre‐sintering. - Mao, Junyan; Yang, Hongbin; Wang, Yan; Luo, Haoming; Dong, Yanhao; Zhang, Jian; Wang, Shiwei (Journal of the American Ceramic Society, 2025)