1)  β-hydroxy acid
β-羟基酸
2)  β-hydroxy acids
β-羟基酸
1.
Chiral β-hydroxy acids are key intermidiates in chemical industry and organic synthesis.
手性β-羟基酸及其衍生物是应用化工和有机合成的关键中间体。
3)  β' to β transformation
β'→β转变
1.
The results show that the beginning and ending temperature of β' to β transformation in Cu-Zn alloy is 446.
用DSC法研究了Cu-Zn合金组织中β′→β转变动力学。
4)  β/β″-Al_2O_3
β/β″-Al_2O_3
1.
Lithium and magnesium co-stabilized β/β″-Al_2O_3 films were fabricated by the reaction between the spinel-α-Al_2O_3 composite substrate and the vapour of Li_2O and Na_2O.
通过MgAl_2O_4-α-Al_2O_3复合相陶瓷基体与Li_2O、Na_2O气氛的反应制备了Li_2O和MgO共同稳定的Naβ／β″-Al_2O_3膜。
5)  β-sialon
β-sialon
1.
Density technical study of bauxite-based β-SiAlON-corundum;
矾土基β-SiAlON-刚玉料致密度的研究
2.
Microwave Synthesis of β-Sialon;
微波合成β-Sialon
3.
Preparation of β-Sialon from kaolin-hydrazine intercalation complex;
高岭土插层材料制备β-Sialon材料
6)  β Phase
β相
1.
The β phase of casting ZK60 alloy states were continuing,and the mechanical properties and deformability were poor.
对铸态及固溶处理后的ZK 60镁合金的组织、拉伸和锻造性能进行了研究,铸态ZK 60镁合金中β相成连续网状分布,力学性能和变形极限较低,经390℃×16h固溶处理后,β相部分或全部溶入基体中,呈不连续点状分布,抗拉强度和屈服强度较铸态提高14%和28%,伸长率(13%)较铸态提高70%。
2.
The electron structures of the interface between GP zone with L_(10) structure(the same in later) and the matrix and the interface between β phase and the matrix in Al-Mg-Si alloy were calculated using the Empirical Electronic Theory in solid and molecules(EET).
运用EET理论对A l-M g-S i合金GP区(L10型,下同)、β相(M g2S i)与基体的界面电子结构进行计算,着重从界面电子角度反映时效过程中GP区、β相与基体的界面结合性质、界面原子状态变化及界面对合金有关力学性能的影响,并分析原子状态变化的原因。
3.
The variations in mechanical properties of W-Ni-Fe heavy alloy with high Ni/Fe ratio(9/1) and the precipitation behavior of β phase in its binding phase during strain-aging were studied.
研究预应变时效高NiFe比(91)钨合金的性能及粘结相中β相的沉淀行为。
参考词条
补充资料：β-羟基酸
分子式：
CAS号：

性质：通式为RCH(OH)·CH2COOH的羧酸。一般为黏稠液体或固体。溶于水。用氧化剂氧化时，生成β-酮酸。加热时脱水成α，β-不饱和酸。用α-卤代酸酯、锌粉与醛或酮经列福尔马茨基反应（Reformatsky reaction）制取。

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