Effect of nitride addition on the electrical and thermal properties of pressureless solid-state sintered SiC ceramics

Malik, Rohit; Kim, Young‐Wook

doi:10.1007/s43207-022-00190-4

Cited by 6 publications

(3 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, boron carbide and phenol formaldehyde resin powder (carbon sources) are used here as sintering aids. The role of B 4 C is to segregate at the grain boundaries and reduce the grain boundary energy ( γ GB ), and C can increase the surface energy ( γ SV ) of SiC particles by removing some native SiO 2 film via a carbothermal reduction process 29 . Firstly, the SiC powder and SiCw were weighed by an electronic scale according to the proportions shown in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…The role of B 4 C is to segregate at the grain boundaries and reduce the grain boundary energy (γ GB ), and C can increase the surface energy (γ SV ) of SiC particles by removing some native SiO 2 film via a carbothermal reduction process. 29 Firstly, the SiC powder and SiCw were weighed by an electronic scale according to the proportions shown in Table 1. Anhydrous ethanol, SiCw, and polyvinylpyrrolidone (.5 wt% of SiCw, used as dispersant) were mixed uniformly with a magnetic stirrer, and the composite powder was ultrasonically stirred for .5 h to obtain a SiC-SiCw mixed solution.…”

Section: Materials Preparationmentioning

confidence: 99%

See 1 more Smart Citation

Mechanical and tribological properties of SiC whisker‐reinforced SiC composites via oscillatory pressure sintering

Yang

Zhu

Sun

et al. 2023

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

SiC whisker (SiCw)‐reinforced SiC composites were prepared by an oscillatory pressure sintering (OPS) process, and the effects of SiCw content on the microstructure and mechanical and tribological properties of such composites were investigated. The addition of SiCw could promote the formation of long columnar α‐SiC, and the aspect ratio of α‐SiC grains first increased and then decreased with the increase of SiCw content. When the SiCw content was 5.42 wt%, the relative density of the SiC–SiCw composite reached up to 99.45%. The SiC–5.42 wt% SiCw composite possessed the highest Vickers hardness, fracture toughness, and flexural strength of 30.68 GPa, 6.66 MPa·m1/2, and 733 MPa, respectively. In addition, the SiC–5.42 wt% SiCw composite exhibited the excellent wear resistance when rubbed with GCr15 steel balls, with a friction coefficient of .76 and a wear rate of 4.12 × 10−7 mm3·N−1·m−1. This could be ascribed to the improved mechanical properties of SiC–SiCw composites, which enhanced the ability to resist peeling and micro‐cutting, thereby enhancing the tribological properties of the composites.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Materials Preparationmentioning

confidence: 99%

Mechanical and tribological properties of SiC whisker‐reinforced SiC composites via oscillatory pressure sintering

Yang

Zhu

Sun

et al. 2023

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…Among the studies on improving the sintering driving force, the research of appropriate sintering methods and sintering additives have become hot spots in this field. The main sintering methods of SiC ceramics are pressureless sintering [ 11 , 12 , 13 ] and reaction sintering [ 14 , 15 ], but the two sintering have low purity. To avoid these drawbacks, researchers have developed the hot pressing sintering method [ 9 , 16 , 17 ], spark plasma sintering [ 18 , 19 , 20 ], microwave sintering [ 21 ], hot isostatic sintering [ 22 ], and so on.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Hot Pressing Sintered SiC/Y3Al5O12 Composite Ceramics for Dry Gas Seals

Zou,

Ou,

Zhou

et al. 2024

Materials

View full text Add to dashboard Cite

Silicon carbide (SiC) ceramics with high bending strength were prepared by hot pressing sintering (HPS) with yttrium aluminum garnet (Y3Al5O12, YAG) as sintering additive, and the effects of YAG content and sintering temperature on the sintering behavior, microstructure and mechanical properties of SiC ceramics were investigated in detail. The uniform distribution of YAG to form a liquid phase and the driving force provided by hot pressing sintering decrease the sintering temperature, improve the densification of SiC ceramics, and refine the crystal size. By means of suitable sintering conditions with the additional amount of YAG of 5 wt%, the sintering temperature of 1950 °C and a pressure of 30 MPa, the resultant SiC/YAG composite ceramics possesses high sintering and mechanical properties with the relative density of 98.53%, the bending strength of 675 MPa, the Vickers hardness of up to 17.92 GPa, and the elastic modulus of 386 GPa. The as-prepared SiC/YAG composite ceramics are promisingly used as the dry gas seal materials in the centrifugal compressors.

show abstract

Functional materials for modifying interfaces between solid electrolytes and lithium electrodes of all-solid-state lithium metal batteries

Yoon

2023

J. Korean Ceram. Soc.

View full text Add to dashboard Cite

Effect of nitride addition on the electrical and thermal properties of pressureless solid-state sintered SiC ceramics

Cited by 6 publications

References 30 publications

Mechanical and tribological properties of SiC whisker‐reinforced SiC composites via oscillatory pressure sintering

Mechanical and tribological properties of SiC whisker‐reinforced SiC composites via oscillatory pressure sintering

Microstructure and Properties of Hot Pressing Sintered SiC/Y3Al5O12 Composite Ceramics for Dry Gas Seals

Functional materials for modifying interfaces between solid electrolytes and lithium electrodes of all-solid-state lithium metal batteries

Contact Info

Product

Resources

About