Cation distribution in the structure of titanium-containing ludwigite

被引：0
|
作者：
A. A. Brovkin
I. V. Rozhdestvenskaya
E. A. Rykova
机构：
[1] Fedorovskii All-Russia Institute of Mineral Resources (VIMS),Faculty of Geology
[2] St. Petersburg State University,Faculty of Physics
[3] Moscow State University,undefined
来源：
Crystallography Reports | 2002年 / 47卷
关键词：
Iron; Titanium; Magnesium; Crystal Structure; Structural Formula;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The crystal structure of natural titanium-containing ludwigite has been refined. The unit-cell parameters are a = 9.260 ± 0.002 Å, b = 12.294± 0.002 Å, c = 3.0236± 0.0005 Å, sp. gr. Pbam, and R = 0.0288. The observed cation distribution over the M1-M4 positions corresponds to the structural formula (Mg0.5)(Mg1.0)(Mg0.338Fe0.1622+)(Fe0.473+Ti0.214+Mg0.152+Al0.103+Fe0.072+(BO3)O2. Highly charged titanium ions in the M4 position are balanced mainly with magnesium and not with divalent iron ions.
引用
收藏
页码：412 / 414
页数：2
相关论文
共 50 条
  • [21] Technological research of process for producing titanium rich slag and complex titanium-containing ferroalloy
    Vorobkalo, Nina
    Baisanov, Alibek
    Makhambetov, Yerbolat
    Mynzhasar, Yesmurat
    Nurgali, Nurzhan
    HELIYON, 2023, 9 (08)
  • [22] Preparation metal titanium from molten salt electrodeoxidized titanium-containing waste residue
    Gai J.
    Chen C.
    Li J.
    Wang L.
    Shen Y.
    Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology), 2021, 52 (04): : 1076 - 1082
  • [23] Post-synthetic preparations of titanium-containing mesopore molecular sieves
    Ahn, WS
    Lee, DH
    Kim, TJ
    Kim, JH
    Seo, G
    Ryoo, R
    APPLIED CATALYSIS A-GENERAL, 1999, 181 (01) : 39 - 49
  • [24] Oxygen Solubility in Titanium-Containing Melts of the Ni-Co System
    Aleksandrov, A. A.
    Dashevskii, V. Ya.
    RUSSIAN METALLURGY, 2018, (11): : 1081 - 1087
  • [25] The effect of silylation on titanium-containing silica catalysts for the epoxidation of functionalised molecules
    Guidotti, Matteo
    Batonneau-Gener, Isabelle
    Gianotti, Enrica
    Marchese, Leonardo
    Mignard, Samuel
    Psaro, Rinaldo
    Sgobba, Maila
    Ravasio, Nicoletta
    MICROPOROUS AND MESOPOROUS MATERIALS, 2008, 111 (1-3) : 39 - 47
  • [26] Preparation of titanium-containing polymeric foam for inertial confinement fusion target
    Cadra, Stephane
    Balland-Longeau, Alexia
    Gerard, Jean-Francois
    Moreau, Louis
    Thibonnet, Jerome
    APPLIED ORGANOMETALLIC CHEMISTRY, 2013, 27 (12) : 695 - 697
  • [27] Titanium-containing hydrofluoric acid pretreatment for aluminum chemical vapor deposition
    Sugai, K
    Okabayashi, H
    Kishida, S
    Shinzawa, T
    THIN SOLID FILMS, 1996, 280 (1-2) : 142 - 146
  • [28] Thermodynamics of the Oxygen Solutions in Titanium-Containing Fe–Co–Cr Melts
    A. A. Aleksandrov
    V. Ya. Dashevskii
    Russian Metallurgy (Metally), 2019, 2019 : 531 - 535
  • [29] The crystal structure of ludwigite
    Irwin, MB
    Peterson, RC
    CANADIAN MINERALOGIST, 1999, 37 : 939 - 943
  • [30] THE STRUCTURE TYPE OF LUDWIGITE
    TAKEUCHI, Y
    KOGURE, T
    ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1992, 200 (1-2): : 161 - 167
12345