Effect of ball milled Zr/Al/ZrB2 composite powders on microstructure and toughening of ZrB2–SiC/Zr–Al–C composite ceramics sintered by spark plasma sintering

Guo, Qilong; Luo, Sijun; Gan, Jizhong; Li, Junguo; Zhang, Lianmeng

doi:10.1016/j.msea.2015.07.010

Cited by 12 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1, the ZrO 2 /Al 2 O 3 /RF composite aerogels are transformed into black-colored ZrC@Al 2 O 3 @carbon composite aerogels after calcined at 1500 °C. Due to the pyrolysis of organic constitutes, the linear shrinkage of ZrC@Al 2 O 3 @carbon composite aerogels are evidently observed during the carbonization process [19]. Table 1 shows that the bulk densities of composite aerogel undergo a decrease-increase trend with the increase of Zr/R molar ratios.…”

Section: Resultsmentioning

confidence: 99%

Preparation of ZrC@Al2O3@Carbon composite aerogel with excellent high temperature thermal insulation performance

et al. 2019

View full text Add to dashboard Cite

The ZrC@Al 2 O 3 @carbon composite aerogels are obtained from low-cost inorganic salt of zirconium and aluminum as raw materials through sol-gel route and carbothermal reduction process. The effects of reactant molar ratios and heattreatment time on physicochemical properties of ZrC@Al 2 O 3 @carbon composite aerogels are investigated. The results show that the compressive strength of ZrC@Al 2 O 3 @carbon composite aerogel is as high as 1.31 MPa. The specific surface area of sample is as high as 650.4 m 2 g −1 , which is beneficial for its application of thermal insulation and catalyst supporting at elevated temperatures. After heat-treated at 1500 °C for 5 h, the thermal conductivity of carbon fiber mat reinforced composite aerogel is as low as 0.048 W m −1 K −1 (25 °C).

show abstract

Section: Resultsmentioning

confidence: 99%

Preparation of ZrC@Al2O3@Carbon composite aerogel with excellent high temperature thermal insulation performance

et al. 2019

View full text Add to dashboard Cite

show abstract

“…How to improve the density of ZrB 2 ceramics has been one of the international research priorities. In recent years, many scholars at home and abroad on zirconium diboride composite sintering densification process and how to improve the high-temperature oxidation resistance of the material for a lot of research work, and achieved many good results [3][4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Auxiliary on the Dispersibility of ZrB2 Powder in the Liquid

Song

Wang

Liu

et al. 2017

MSF

View full text Add to dashboard Cite

The composite ZrB2 powder coated A12O3-Y2O3 prepared by co-precipitation method were densified via the spark plasma sintering (SPS) and then researched the oxidation resistance at high temperature. ZrB2 powder must have the better dispersibility during the coating processing for obtaining the better coating effect. Effect of dispersant on the dispersibility of ZrB2 powder in the liquid is researched in this paper, the results show ZrB2 powder have the better dispersibility as the dispersant for PMAA and the content for 2vol%, which lay foundation for synthsising the better coating effect coated A12O3-Y2O3-ZrB2 composite powder.

show abstract

“…How to improve ZrB 2 ceramic density has been a focus of the study. In recent years, many domestic and foreign scholars zirconium diboride composite material densification process has been a lot of research work [3][4].…”

Section: Introductionmentioning

confidence: 99%

Influence of Synthesis Process on Coated Properties of Al(OH)3-Y(OH)3/ZrB2 Composite Powders

Song

Wang

et al. 2017

KEM

View full text Add to dashboard Cite

Zirconium diboride (ZrB2) ceramics with high melting point, high hardness, good electrical and thermal conductivity, good neutron control and other characteristics, can be widely used in high-temperature structural ceramics, composite materials, electrode materials. In order to improve ZrB2 difficult densification and high-temperature oxidation, the properties of coated Al (OH)3-Y(OH)3/ZrB2 composite powders prepared by co-precipitation method were investigated in this paper, The conclusions are shown that the effect of coated composite powders is getting worse with the accelerated titration rates. the coating effect will be worse with the increasing reaction time. When the concentration of mixed solution is lower, the coated effect is better. When the synthesis condition is that the titration rate of 10ml/min, and the reaction time was 1h, mixed solution ion concentration of Y3+=0.119mol/L and Al3+=0.231mol/L, the coated effect of composite powders is better.

show abstract

Effect of ball milled Zr/Al/ZrB2 composite powders on microstructure and toughening of ZrB2–SiC/Zr–Al–C composite ceramics sintered by spark plasma sintering

Cited by 12 publications

References 29 publications

Preparation of ZrC@Al2O3@Carbon composite aerogel with excellent high temperature thermal insulation performance

Preparation of ZrC@Al2O3@Carbon composite aerogel with excellent high temperature thermal insulation performance

Effect of Auxiliary on the Dispersibility of ZrB<sub>2</sub> Powder in the Liquid

Influence of Synthesis Process on Coated Properties of Al(OH)<sub>3</sub>-Y(OH)<sub>3</sub>/ZrB<sub>2</sub> Composite Powders

Contact Info

Product

Resources

About