A(B’1/3B’’2/3)O3 複合鈣鈦礦微波介電陶瓷的品質因子，與其晶體結構中 B 位置陽離子的有序程度存在著很大的關聯性。而材料的有序化行為一般被認為與熱處理條件有關，但這方面的關聯性卻鮮少以動力學的模式進行研究。本研究以高溫熱處理及淬冷 (quench) 的方法探討了Ba(Mg(1-x)/3Cox/3Nb2/3)O3 陶瓷材料的1:2 有序化動力學行為。研究中的 x = 0.3、 0.5及 0.7 成分點，在有序─無序相轉換溫度以下的 1200 - 1400oC 之間，隨著熱處理的時間增加，有序化程度隨之上升，各個成分在各個溫度的有序化速率也有所不同，反映了有序化行為並非僅具熱力學平衡機制，也必須考慮動力學條件。由成核成長的動力學計算，有序化行為是由 domain boundary motion控制，在初期已達到成核飽和狀態，成長的速率隨著 Co2+取代量增加而下降。研究中也指出了有序─無序轉換溫度也是隨著Co2+的添加量而下降，其趨勢與 Ba(Mg1/3Nb2/3)O3 和 Ba(Co1/3Nb2/3)O3的相轉換溫度之連線相似。在到達相轉換溫度之前，有一個有序程度隨溫度上升而漸退的區間，此區間隨著熱處理時間拉長而縮小，在固定熱處理時間為 4 小時的情況下，寬度約為 100oC 左右。

It is believed that there is a connection between quality factor and ordering of B cations in A(B’1/3B’’2/3)O3. perovskites. Nevertheless, there are only few kinetic studies in ordering behavior. In this research, ordering behavior of Ba(Mg(1-x)/3Cox/3Nb2/3)O3 was studied by annealing and quench at high temperature. In the study that Ba(Mg(1-x)/3Cox/3Nb2/3)O3 whose x = 0.3, 0.5 and 0.7 annealed at the temperature between 1200 – 1400oC, ordering degrees of Ba(Mg(1-x)/3Cox/3Nb2/3)O3 raised up with prolonging of annealing time . The rate of ordering varies with the given composition and annealing temperature. Therefore, besides thermodynamic factors, it should take kinetic factors into consideration.According to the kinetic analysis, ordering of Ba(Mg(1-x)/3Cox/3Nb2/3)O3 is controlled by domain boundary motion. And the rate of ordering decreases with increasing of the amount of Co2+ substitution. It also reveals that phase transition temperature of order-disorder decreases with the increasing of the amount Co2+ substitution. Before reaching to the phase transition temperature, there is a temperature range where ordering degrees of samples decrease when it was heated up. And width of the range reduces with the prolonging of annealing time. In the situation that annealing time was 4 hours, the range is about 100oC .

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