Review of properties of lithium metatitanate

Gierszewski, P.

doi:10.1016/s0920-3796(97)00168-3

Cited by 80 publications

(38 citation statements)

References 10 publications

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“…This tritium breeder is most commonly used as pebble or pellet. Significant work has been done on the fabrication of Li 2 TiO 3 pebbles [7][8][9][10][11][12][13][14][15][16]. Tritium release is one of the most important features for breeding materials [17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Li+ ion mobility on the grain boundary conductivity of Li2TiO3 nanoceramics

et al. 2014

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Lithium titanate (Li 2 TiO 3 ) is one of the most promising candidates among the tritium breeding materials because of its good tritium release capacity. Li concentration has much significance on the diffusivity of tritium in the material. The nanocrystalline single-phase Li 2 TiO 3 with monoclinic structure has been prepared by high energy ball milling followed by calcination at 700 ℃ for 2 h. The field emission scanning electron microscopy (FESEM) studies confirmed uniform distribution of nanocrystalline phase with particle size below 100 nm. The study of the Li + ion diffusion on the sintered sample was investigated by means of electrical conductivity measurements. Electrical properties of the samples were studied in wide temperature (50-500 ℃) and frequency (100 Hz-1 MHz) ranges. The complex impedance spectroscopy (CIS) studies showed the presence of both bulk and grain boundary effects in nanocrystalline Li 2 TiO 3 . The bulk resistance of the samples has been observed to decrease with rise in temperature showing a typical negative temperature coefficient of resistance (NTCR) behavior. The low activation energies of the samples suggested the presence of singly ionized oxygen vacancies in the conduction process. The hopping frequency shifted toward higher frequency with increase in temperature. Activation energy of 0.86 eV was calculated from AC conductivity.

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Section: Introductionmentioning

confidence: 99%

Effect of Li+ ion mobility on the grain boundary conductivity of Li2TiO3 nanoceramics

et al. 2014

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“…According to Refs. [5] and [16], the Young's modulus of Li 2 TiO 3 is two times as large as that of LiAlO 2 (Young's modulus: about 60 GPa in 20% porosity). The compression strength of LiAlO 2 is about 380 MPa in Ref.…”

Section: Contact Strength Of Ytz Ballmentioning

confidence: 93%

“…Lithium titanate (Li 2 TiO 3 ) pebbles are considered to be a candidate material of the tritium breeders for fusion reactor from viewpoints of good tritium release, low tritium inventory and chemical stability [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of contact strength of Li2TiO3 pebbles with different diameters

Tsuchiya

Kawamura

Tanaka

2006

Fusion Engineering and Design

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“…The solubility of tritium gas molecule in Li 2 TiO 3 was roughly reported in ref. [19]. It was assumed that the tritium solubility depends on Henry's law when the partial pressure of tritium gas molecule in closed-pore is less than 1 Pa where the Sievelts's law is no longer applicable in such low pressure.…”

Section: Simulation Codementioning

confidence: 99%

Development of the Tritium Transport Model for Pebbles of Li<sub>2</sub>TiO<sub>3</sub>

Kobayashi

Oya

2018

Plasma and Fusion Research

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Tritium transport code in Li 2 TiO 3 pebbles were developed in this study. In the simulation code, tritium transports in a grain, a closed-pore and an opened-pore were modeled and combined. The tritium transport in grain was modeled by the tritium diffusion, trapping/detrapping by defects, and the annihilation process of defects. The adsorption/desorption equilibrium of diffusing tritium gas molecule was modeled for the tritium transports in opened-pores. A vacant-core and shell model was used to model the tritium transport in closedpores. The results by simulation code suggested that the tritium trapping by closed-pores would result in the shift of tritium release toward higher temperature side as dissociation of tritium gas molecule in closed-pores requires higher activation energy.

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Review of properties of lithium metatitanate

Cited by 80 publications

References 10 publications

Effect of Li+ ion mobility on the grain boundary conductivity of Li2TiO3 nanoceramics

Effect of Li+ ion mobility on the grain boundary conductivity of Li2TiO3 nanoceramics

Evaluation of contact strength of Li2TiO3 pebbles with different diameters

Development of the Tritium Transport Model for Pebbles of Li<sub>2</sub>TiO<sub>3</sub>

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