Investigations on the Crystal Structure and the Stability Field of FCAM-I (Ca3MgAl6Fe10O28), an Iso-structure to SFCA-I

被引：14

作者：

Zoll, Klaus ^{[1
]}

Manninger, Tanja ^{[1
]}

Kahlenberg, Volker ^{[1
]}

Kruger, Hannes ^{[1
]}

Tropper, Peter ^{[1
]}

机构：

[1] Univ Innsbruck, Inst Mineral & Petrog, Innrain 52, A-6020 Innsbruck, Austria

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2017年 / 48卷 / 04期

关键词：

SOLID-SOLUTION LIMITS; PHASE-RELATIONSHIPS; SILICO-FERRITE; ALUMINUM SFCA; CALCIUM;

D O I：

10.1007/s11663-017-0988-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In a study on parts of the system Fe2O3-CaO-Al2O3-MgO, the previously unknown compound Ca3MgAl6Fe10O28 or FCAM-I (iso-structural with SFCA-I) has been synthesized. The two principal aims of our investigations have been (i) analysis of the stability field of the new phase as a function of T and fO(2) and (ii) determination of its crystal structure. Two experimental series in air and under controlled oxygen fugacity via the hematite-magnetite buffer were conducted. Pure polycrystalline FCAM-I has been obtained at 1463.15 K (1190 A degrees C) in air. While increasing the temperature from 1573.15 K to 1673.15 K (1300 A degrees C to 1400 A degrees C), the FCAM-I phase breaks down forming a variety of new compounds depending on T and fO(2). Ca3MgAl6Fe10O28 has a triclinic crystal structure (space group P ). Basic crystallographic data are as follows: a = 10.2980(4) , b = 10.4677(4) , c = 11.6399(4) , alpha = 94.363(3)A degrees, beta = 111.498(3)A degrees, gamma = 109.744(3)A degrees, V = 1069.81(7) (3), Z = 2.

引用

页码：2207 / 2221

页数：15

共 20 条

[1]

Bragard A., 1967, REP, P3

[2]

Bruker-AXS, 2009, TOPAS VERSION 4 2 SO

[3] SIR2004:: an improved tool for crystal structure determination and refinement [J].

Burla, MC ;

Caliandro, R ;

Camalli, M ;

Carrozzini, B ;

Cascarano, GL ;

De Caro, L ;

Giacovazzo, C ;

Polidori, G ;

Spagna, R .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2005, 38 :381-388

[4] A FUNDAMENTAL PARAMETERS APPROACH TO X-RAY LINE-PROFILE FITTING [J].

CHEARY, RW ;

COELHO, A .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1992, 25 (pt 2) :109-121

[5]

Dayal R., 1967, SCI CERAM, P191

[6]

Dowty E., 2011, ATOMS6 4 SHAPE SOFTW

[7]

Farrugia L.J., 1999, J. Appl. Crystallogr, V32, P837, DOI [10.1107/S0021889899006020, DOI 10.1107/S0021889812029111, 10.1107/S0021889812029111]

[8]

HAMILTON JDG, 1989, NEUES JB MINER ABH, V161, P1

[9]

ICDD PDF-4+ Version, 2013, ICDD PDF 4 VERS 4 13, V4, P1302

[10]

Kalenga MK, 2010, J S AFR I MIN METALL, V110, P447

← 1 2 →