水基凝胶注模成型工艺制备0.9Al 2 O 3 -0.1TiO 2 陶瓷的微波介电性能
Source abstract
Abstract
采用水基凝胶注模成型工艺制备了0.9Al 2 O 3 -0.1TiO 2 陶瓷. 研究了烧结后的0.9Al 2 O 3 -0.1TiO 2 陶瓷的微结构、相组成以及微波介电性能. 通过采用合适的预烧温度(1200℃)和连续、缓慢的降温工艺来退火, 成功消除了Al 2 TiO 5 第二相. 和传统干压法相比, 用水基凝胶注模成型工艺制备的0.9Al 2 O 3 -0.1TiO 2 陶瓷具有较大的晶粒, 较少的气孔和更加均匀的微结构. 因此, 用水基凝胶注模成型工艺制备的0.9Al 2 O 3 -0.1TiO 2 陶瓷拥有更好的微波介电性能: e r = 10.71, Q x f =20421GHz, t f = 1.3´10 -6 /℃，而用传统干压法制备的0.9Al 2 O 3 -0.1TiO 2 陶瓷的微波介电性能为 e r =10.89, Q x f =11938GHz, t f = 1.4 x 10 -6 /℃.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Microwave Dielectric Ceramics Synthesis · Advanced ceramic materials synthesis · Pigment Synthesis and Properties
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