Published January 2019 | Version v1
Journal article Metadata-only

Influence of titanium sources on the microstructures and properties of Li2TiO3 ceramics prepared by hydrothermal method

Creators

  • 1. State Key Laboratory of Materials Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074 (China)

Description

The influence of titanium sources on the microstructures and properties of Li2TiO3 were investigated. The results show the hydrothermal synthesized α-Li2TiO3 is a metastable phase and would transform into β-Li2TiO3 phase during sintering. Compared with TiO2-hydrothermal synthesized powder, the TBT synthesized powder has better sintering activity. The relative density of ceramic pebbles can reach 84% when it was sintered at 800 °C for 3 h. The grain size and crush load are 0.62 μm and 35 N, respectively. The formation mechanisms during hydrothermal process are also discussed. Combined results of XRD and TEM, it is concluded that for TiO2 as titanium source, TiO2 particles first dissolve into the LiOH solution and then the dissolved TiOxâˆ' groups react with Li+ to form Li2TiO3 precipitates. While for TBT source, α-Li2TiO3 nucleus immediately form as soon as TBT is added into the LiOH solution at room temperature.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.fusengdes.2018.12.033

Additional details

Identifiers

DOI
10.1016/j.fusengdes.2018.12.033;
PII
S0920379618307981;

Publishing Information

Journal Title
Fusion Engineering and Design
Journal Volume
138
Journal Page Range
p. 364-371
ISSN
0920-3796
CODEN
FEDEEE

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54112011
Subject category
S36: MATERIALS SCIENCE; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
CERAMICS; GRAIN SIZE; HYDROTHERMAL SYNTHESIS; LITHIUM IONS; LITHIUM TITANATES; PHASE TRANSFORMATIONS; POWDERS; TITANIUM; TITANIUM OXIDES; TRANSMISSION ELECTRON MICROSCOPY; TRITIUM; X-RAY DIFFRACTION
Descriptors DEC
ALKALI METAL COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHALCOGENIDES; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; ELEMENTS; HYDROGEN ISOTOPES; IONS; ISOTOPES; LIGHT NUCLEI; LITHIUM COMPOUNDS; METALS; MICROSCOPY; MICROSTRUCTURE; NUCLEI; ODD-EVEN NUCLEI; OXIDES; OXYGEN COMPOUNDS; RADIOISOTOPES; SCATTERING; SIZE; SYNTHESIS; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; YEARS LIVING RADIOISOTOPES

Optional Information

Copyright
Copyright (c) 2018 Elsevier B.V. All rights reserved.