Neutron Irradiation Effect on Isotopically Tailored11B4C

Morohashi, Yuko; Maruyama, Tadashi; Donomae, Takako; Tachi, Yoshiaki; Onose, Shoji

doi:10.1080/18811248.2008.9711488

Cited by 14 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rapid decrease of the thermal conductivity can be attributed to the point defects induced by fast neutron irradiation. The postirradiation annealing experiment of 11 B 4 C shows that the thermal conductivity for 11 B 4 C can be almost completely recovered to the value before irradiation [5]. But in the case of 10 B 4 C, the recovery of the thermal conductivity is very poor even after high annealing temperature [5].…”

Section: Theoretical Modelmentioning

confidence: 97%

“…The postirradiation annealing experiment of 11 B 4 C shows that the thermal conductivity for 11 B 4 C can be almost completely recovered to the value before irradiation [5]. But in the case of 10 B 4 C, the recovery of the thermal conductivity is very poor even after high annealing temperature [5]. This can be explained that the point defects like Frankel defects induced by neutron irradiation are not the main factors which cause the large degradation of the thermal conductivity.…”

Section: Theoretical Modelmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of Point Defects Induced by Fast Neutron Irradiation on the Thermal Conductivity of Boron Carbide

et al. 2017

KEM

View full text Add to dashboard Cite

The thermal conduction behavior of the neutron absorbing ceramic boron carbide in the initial stage of the irradiation was analyzed and a classical thermal conduction model was used to estimate the variation of the thermal conductivity in this paper. The calculated thermal conductivity using the model shows a large degration in the initial stage of irradiation. As the burnup increases, the thermal conductivity turns to be free of temperature dependence. These calculated results are consistent well with the expermental data of thermal conductivity of the irradiated boron carbide, which may suggest that the variation of the thermal conductivity of boron carbide is predominantly determined by the point defects scattering in the initial stage of irradiation.

show abstract

Section: Theoretical Modelmentioning

confidence: 97%

Section: Theoretical Modelmentioning

confidence: 99%

The Effect of Point Defects Induced by Fast Neutron Irradiation on the Thermal Conductivity of Boron Carbide

et al. 2017

KEM

View full text Add to dashboard Cite

show abstract

“…The investigation in [93] was conducted to elucidate the effects of neutron irradiation on the dimensions and thermal conductivity of isotopically tailored boron carbide 11 Understanding the electronic structure and related properties of boron carbide homogeneity range's C-rich limit, i.e., B 4.3 C, at an advanced level is easier than for B-rich boron carbides. An important contribution to closing this gap was performed in [94] as a result of the investigation of the electrical conductivity of boron carbide at temperatures from ~5 to ~2100 K across the whole homogeneity range.…”

Section: Structure and Properties Of Boron Carbides And Related Matri...mentioning

confidence: 99%

Advanced Boron Carbide Matrix Nanocomposites Obtained from Liquid-Charge: Focused Review

Chkhartishvili

Mikeladze²,

Tsagareishvili³

et al. 2023

Condensed Matter

View full text Add to dashboard Cite

Boron carbide is known as a hard material; it possesses a unique complex of physical-mechanical properties and has diverse applications in industries. An expansion of its field of uses stems from the creation of boron carbide matrix nanocomposite materials. In view of this perspective, an effective liquid-charge synthesizing method for their components in nanopowder form has been proposed. This paper provides a focused review on advanced boron carbide matrix ceramic and metal-ceramic nanocomposites recently obtained by the authors using this method. Particular attention is paid to the characterization of boron carbide nanocomposites, including some ceramic borides, metallic alloys and also other metal-ceramic composites.

show abstract

“…Boron carbide is recognized as an extremely promising neutron absorbing material because of its outstanding properties such as high boron content, chemical stability and refractory character. Neutron absorption property of boron carbide relies on the presence of 10 B isotope, which undergoes the 10 B (n, α) 7 Li reaction for a wide energy range of neutrons [1,2].…”

Section: Introductionmentioning

confidence: 99%

Pressureless Sintering of B4C Neutron Absorbing Material with Nano-Sized Rare-Earth Compounds Addition

Wei

Zhang

Gong

et al. 2012

AMR

View full text Add to dashboard Cite

The processing of boron carbide by pressureless sintering with nano-sized rare-earth compounds additives to obtain dense pellets for use as neutron absorber in fast breeder reactors is investigated. The effect of dysprosium aluminum garnet (DAG) and dysprosium titanate nanopowders on density and mechanical properties was studied. The addition of DAG and dysprosium titanate nanopowders was found to be beneficial in the densification of B4C powders. B4C with 5 wt. % of DAG or dysprosium titanate nanopowders, exhibiting bulk density of 2.14g/cm3 and 2.35 g/cm3, could be prepared by pressureless heating at 2120°C and 2160°C.

show abstract

Neutron Irradiation Effect on Isotopically Tailored¹¹B₄C

Cited by 14 publications

References 7 publications

The Effect of Point Defects Induced by Fast Neutron Irradiation on the Thermal Conductivity of Boron Carbide

The Effect of Point Defects Induced by Fast Neutron Irradiation on the Thermal Conductivity of Boron Carbide

Advanced Boron Carbide Matrix Nanocomposites Obtained from Liquid-Charge: Focused Review

Pressureless Sintering of B<sub>4</sub>C Neutron Absorbing Material with Nano-Sized Rare-Earth Compounds Addition

Contact Info

Product

Resources

About