PHASE RELATIONSHIPS IN SYSTEM SRO-P2O5 AND INFLUENCE OF WATER VAPOR ON FORMATION OF SR4P2O9
PHASE RELATIONSHIPS IN SYSTEM SRO-P2O5 AND INFLUENCE OF WATER VAPOR ON FORMATION OF SR4P2O9
复制标题
DOI：
10.1021/ic50051a007
复制
发表时间：
1967-01-01
影响因子：
4.6
通讯作者：
HUMMEL, FA
中科院分区：
文献类型：
--
作者：
KREIDLER, ER;HUMMEL, FA
采用淬火、带式炉、真空热处理和高温X射线衍射等方法测定了Sr_0-P_（205）体系的相关系。在1400 ℃以下的空气中对系统SrO端附近的成分所做的实验结果，只能通过将水蒸气视为系统的一个组分来解释。数据用于构建系统Sr 0-P2 O 5和系统Sr 0-P2 O 5-H2O的一部分的相图。详细讨论了六种二元化合物的熔融行为和多晶型现象。将SrO-P2 O 5体系与CaO-P2 O 5体系进行了比较。有限的数据theCaO-P2 O 5系统指出错误的报道图表，并提出了一个新的图表CaO-P2 O 6系统，但强调，需要仔细重新调查这一系统。引言和文献综述SrO-P2 O 5系统是技术的重要性，因为两个化合物在该系统中，Sr 2 P2 O 7和SrSiPChR，用作有效锡活化（Sn 2+）磷光体的主体结构。虽然Sr 0-P2 O 5体系的相图尚未公布，但Ropp、Aia、霍夫曼、Veleker和Mooney 1已经公布了大多数无水化合物及其多晶型物的非常可靠的X射线衍射图。报告的阶段为：
Phase relationships in the system Sr0-P205 were determined by quenching, strip furnace, vacuum heat treatment, and hightemperature X-ray diffraction methods. The results of experimentsdone in air at temperatures below 1400 on compositions near the SrO end of the system can be interpreted only by considering rvater vapor as a component of the system. The data were used to construct phase diagrams for the system Sr0-P205 and a portion of the system Sr0-P205-H20. The melting behavior and polymorphism of the six binary compounds is discussed in detail. The SrO-P2Os system is compared with the previously reported CaO-P2Os system. Limited data for theCaO-P2Os system indicate errors in the reported diagrams, and a new diagram for the CaO-P2Oe system is proposed, but it is emphasized that a careful reinvestigation of this system is needed.Introduction and Literature Survey The SrO-P2C> 5 system is of technological importance because two of the compounds in the system, Sr2P207 and SrsiPChR, serve as host structures for efficient tinactivated (Sn2+) phosphors. Although no phase diagram has been published for the Sr0-P205 system, Ropp, Aia, Hoffman, Veleker, and Mooney1 have published very reliable X-ray diffraction patterns for most of the anhydrous compounds and their polymorphs. The phases reported were: