SmB 6 nanoparticles: Synthesis, valence states, and magnetic properties

Bao, Lihong; Chao, Luomeng; Li, Yingjie; Ming, Ming; Yibole, B.; Tegus, O.

doi:10.1016/j.jallcom.2015.06.086

Cited by 12 publications

(2 citation statements)

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“…Most primary particles were in the range 0.1‐0.9 μm, but a few particles grew to a size larger than 1 μm. The size, morphology, and distribution of the SmB 6 particles were similar to a previous report that produced SmB 6 from Sm 2 O 3 and NaBH 4 . Based on the observations, solid‐state reaction is capable of producing submicrometer SmB 6 particles.…”

Section: Resultssupporting

confidence: 87%

“…Various processes have been reported for the preparation of SmB 6 powders. Several groups have reported SmB 6 synthesis by reaction of metal (eg, Sm, Sm 2 O 3 , or SmCl 3 ) and boron sources (eg, B, B 4 C, B 2 O 3 , B/C mixture, NaBH 4 , or Na 2 B 4 O 7 ) . SmB 6 particles were synthesized at 1500‐1800°C by borothermal or boro/carbothermal reductions (BCTR) of Sm 2 O 3 with B, B 4 C, or a B/C mixture under vacuum or H 2 .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, densification, microstructure, and mechanical properties of samarium hexaboride ceramic

Fahrenholtz

Hor

2018

J Am Ceram Soc

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Samarium hexaboride (SmB6) powders were synthesized by boro/carbothermal reduction of Sm2O3 with B4C. Nominally pure SmB6 powder had a mean particle size of about 400 nm and an oxygen content of 0.12 wt%. SmBO3 formed as an intermediate phase during the synthesis. The synthesized powder was hot pressed at 1950°C to produce SmB6 ceramics with relative densities >99.6% and a mean grain size of 4.4 μm. Vickers’ hardness was 20.1 ± 0.7 GPa. Young's modulus measured by bending and ultrasonic methods was 271 and 244 GPa, respectively. The flexure strength was 253 ± 79 MPa and fracture toughness was 2.1 ± 0.1 MPa m1/2. These are the first reported results of the microstructure and bulk mechanical behavior of SmB6 ceramics.

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Section: Resultssupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%