Interaction in the LaB6-HfB2 system

Ordan’yan, S. S.; Paderno, Yu. B.; Khoroshilova, I. K.; Nikolaeva, E. E.

doi:10.1007/bf00792275

Cited by 16 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It can also be seen that it have obvious congruent melting crystallization feature, which lead to pores disappearing gradually and densities increasing. All of these are the major reasons to cause hardness enhancing [6][7][8] . surface becomes irregular and rough.…”

Section: Experimental Methodb 4 C Was Mixed With Labmentioning

confidence: 99%

Effects of CeO2 Addition on Mechanical Properties of LaB6/B4C Composites

Guo

Peng³

et al. 2014

AMR

View full text Add to dashboard Cite

The properties of CeO2-LaB6/B4C composite material prepared by hot pressed sintering method was tested, CeO2as a sintering aid for boron carbide is investigated in this paper. The study shows: the hardness of CeO2-LaB6/B4C composite increases with the content of CeO2. The density, hardness, flexibility strength and the fracture toughness of LaB6/B4C composites is greatly improved compared by CeO2additive. When the content of the CeO2is 1wt%, LaB6/B4C composite has its the best mechanical properties. The density reaches its supreme value of 2.676 g/cm3, the hardness reaches its supreme value of 39.19 GPa, the flexibility strength reaches its supreme value of 354.15 MPa and the fracture toughness reaches its supreme value of 5.15 MPa.m1/2. In conclusion, the density, hardness and flexibility strength of LaB6/B4C composite is improved by CeO2additive. However,it gives little effect on fracture toughness of LaB6/B4C composite. The main fracture way of CeO2-LaB6/B4C composite material is intercrystalline rupture, while the transcrystalline rupture is minor.

show abstract