MPB即准同型相界:由于成分不同,在温度-成分相图上,随着成分的改变,相也会 发生改变,那么分离两种相的边界就称为准同型相界。通常在这个成分下是两相共存的。例如最常见的PZT压电陶瓷:在相图上我们很容易看到在室温下,在富锆区标记为R相,也就是三方相;而在富钛区标记为T相,也就是四方相;那么R相和T相必将有一个相界线,这个相界线就是准同型相界,它对应的成分是Zr:Ti=52:48.现在普遍认为在准同型相界处,压电系数最大。
MPB-MFC 聚能器
MPB-Multi-media player box 多媒体播放盒
最佳MPB专辑 Best MPB Album
Best MPB Album 最佳MPB专辑
MPB Messaging Packet Burst 报文传送分组脉冲串
MPA MPB MPW 叠加式液控单向阀
MPB MicroProgram Bus 微程序总线
MPB Chlorcyclizine Hydrochloride 氯环力嗪盐酸盐
Study of the experimental data indicated that the quaternary system exhibited a well-situated property at morphotropic phase boundary(MPB).
实验数据表明:组成在准同型相界处压电陶瓷的综合性能达最佳。
Novel relaxor ferroelectric single crystal lead magnesium niobate-lead titanate (PMNT) has been found to exhibit excellent piezoelectric properties near the morphotropic phase boundary (MPB).
新型弛豫铁电单晶铌镁酸铅—钛酸铅(PMNT)在准同型相界(MPB)附近具有非常优异的压电性能。
Most likely there are multiple genes that contribute towards MPB, the most important of which appears to be the Androgen Receptor gene, located on the X chromosome (inherited from the mother).
大多数论证认为多基因会引致雄性脱发,而其中最为重要的的是雄激素受体基因,该基因位于X性染色体(对于男性来说遗传自母亲)。
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