材料导报
材料導報
재료도보
MATERIALS REVIEW
2010年
7期
52-56
,共5页
钙钛矿%模晶生长法%织构%压电陶瓷
鈣鈦礦%模晶生長法%織構%壓電陶瓷
개태광%모정생장법%직구%압전도자
perovskite%templated grain growth%texture%piezoelectric ceramics
控制陶瓷材料的微观结构,使之在某个方向上择优取向(即织构化)是提高多晶陶瓷介电、压电性能的重要途径之一.基于织构化流程的特点,综述了钙钛矿系无铅压电材料的TGG工艺、种晶的选择与合成方法以及织构化材料的表征技术,提出了无铅压电材料织构化工艺的发展趋势.
控製陶瓷材料的微觀結構,使之在某箇方嚮上擇優取嚮(即織構化)是提高多晶陶瓷介電、壓電性能的重要途徑之一.基于織構化流程的特點,綜述瞭鈣鈦礦繫無鉛壓電材料的TGG工藝、種晶的選擇與閤成方法以及織構化材料的錶徵技術,提齣瞭無鉛壓電材料織構化工藝的髮展趨勢.
공제도자재료적미관결구,사지재모개방향상택우취향(즉직구화)시제고다정도자개전、압전성능적중요도경지일.기우직구화류정적특점,종술료개태광계무연압전재료적TGG공예、충정적선택여합성방법이급직구화재료적표정기술,제출료무연압전재료직구화공예적발전추세.
Control of the microstructure of ceramic materials to make it in a direction of preferred orientation (ie, texture) is an effective way to improve the dielectric and piezoelectric properties of polycrystalline ceramics. Based on the characteristics of the textured process, the templated grain growth process (TGG) of perovskite lead-free piezoelectric materials, selection and synthesis of templates, and characterization techniques of the texture degree are reviewed. The texture technology development trends are also proposed.
