Elastic moduli of high-density, sintered monoliths of yttrium dihydride

Shivprasad, Aditya; Frazer, D.; Mehta, Vedant; Cooper, M.W.D.; Saleh, Tarik A.; White, Joshua T.; Wermer, Joseph R.; Luther, Erik; Rao, D.V.

doi:10.1016/j.jallcom.2020.153955

Cited by 29 publications

(24 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to characterization of the material properties, nuclear cross section data to predict performance of the material is important to understand. Modeling of material performance such as interatomic forces and crystal lattice parameters can occur using DFT codes [14], [20]- [24]. Validation of results from DFT codes has occurred using neutron time-of-flight powder diffraction and other measurements.…”

Section: Summary Of Measurement Techniquesmentioning

confidence: 99%

“…Beattie, et al measured the elastic moduli of yttrium dihydride using sound speed measurements, as did Setoyama, et al, who measured the moduli as a function of hydrogen content [11], [63]. Shivprasad, et al measured the moduli of sintered yttrium dihydride monoliths as a function of density [20]. There also exists a significant body of work calculating the elastic moduli using DFT, as well, with modeled results in significant agreement with experimental values for fully-dense material [20]- [23].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…Shivprasad, et al measured the moduli of sintered yttrium dihydride monoliths as a function of density [20]. There also exists a significant body of work calculating the elastic moduli using DFT, as well, with modeled results in significant agreement with experimental values for fully-dense material [20]- [23]. The results of various elastic modulus measurements are plotted in Figure 2.9 as a function of stoichiometry and in Figure 2.10 as a function of porosity.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…[9], [32], [37], [38]. [11], [20], [23], [ [11], [20], [23], [63]. All data points are taken from literature for materials at 1 atm pressure [9]- [11], [30], [32], [78]- [90].…”

mentioning

confidence: 99%

“…[9], [32], [33], [37], [38]. Underlined values were extrapolated from low-temperature data [11], [13], [20], [64]. ..............…”

mentioning

confidence: 99%

See 4 more Smart Citations

Advanced Moderator Material Handbook

Shivprasad

Cutler

Jewell

et al. 2020

View full text Add to dashboard Cite

High hydrogen density moderators such as metal hydrides are an important research topic within the DOE NE Microreactor Research, Development, and Deployment (RD&D) Program due to their ability to retain hydrogen to much higher temperatures than other hydrogenous media. This class of moderators, which includes yttrium dihydride (YH2), thermalizes neutrons in the system such that the overall fuel mass or the required uranium enrichment in the system can be significantly reduced. Knowledge of material properties, both in the as-fabricated and irradiated state, are important to understanding moderator performance during steady-state and transient reactor operation. Provided in this document is the Advanced Moderator Material Handbook, which provides a detailed summary of the literature data on yttrium dihydride, thermomechanical and other property data, and a critical evaluation of that data. This handbook also provides a description of ongoing experiments to understand in-reactor performance, such as irradiations in ATR, as well as nuclear data from an integral critical experiment at NCERC. The majority of this report focuses on measured values but also includes some modeling results for comparison where applicable.

show abstract

Section: Summary Of Measurement Techniquesmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

“…[9], [32], [37], [38]. [11], [20], [23], [ [11], [20], [23], [63]. All data points are taken from literature for materials at 1 atm pressure [9]- [11], [30], [32], [78]- [90].…”

mentioning

confidence: 99%

“…[9], [32], [33], [37], [38]. Underlined values were extrapolated from low-temperature data [11], [13], [20], [64]. ..............…”

mentioning

confidence: 99%

See 3 more Smart Citations