Spark plasma sintering of combustion-synthesized β-SiAlON powders

Yi, Xuemei; Guo, Ran; Liu, Xiongzhang; Zhang, Weiguo; Yan, Fengxin

doi:10.1016/j.ceramint.2016.01.038

Cited by 5 publications

(2 citation statements)

References 35 publications

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“…Table 1 presents the results of the microhardness test conducted on the samples. The average HV1 value of the sintered sample was 12.520 GPa, whereas the β‐Sialon ceramic exhibited a microhardness of 18 GPa 26 . Additionally, the compressive strength of the sintered sample was measured to be 2869 MPa, while the β‐Sialon engineering ceramic displayed a compressive strength of 3500 MPa.…”

Section: Resultsmentioning

confidence: 96%

“…The average HV1 value of the sintered sample was 12.520 GPa, whereas the β-Sialon ceramic exhibited a microhardness of 18 GPa. 26 Additionally, the compressive strength of the sintered sample was measured to be 2869 MPa, while the β-Sialon engineering ceramic displayed a compressive strength of 3500 MPa. Consequently, the density, hardness, and compressive strength of the sintered sample were lower than those of the β-Sialon ceramic.…”

Section: Mechanical Properties Testmentioning

confidence: 98%

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Friction and wear characteristics of β‐Sialon prepared from secondary aluminum dross

Zheng,

Hang,

Wang

et al. 2023

Int J Applied Ceramic Tech

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This study investigates the properties of β‐Sialon synthesized from secondary aluminum dross. High‐purity β‐Sialon powders were synthesized through nitriding reduction, followed by spark plasma sintering to obtain dense sintered bodies. The phase composition, microstructure, microhardness, and friction and wear characteristics of the sintered bodies were analyzed using X‐ray diffractometry, scanning electron microscopy, a microhardness tester, and a friction and wear tester, respectively. Fracture analysis revealed a combination of through‐crystal and along‐crystal fractures, with fracture occurrence correlated to crack expansion. The crystalline fractures exhibited a toughening effect. The friction and wear test of the sintered bodies demonstrated a decrease in the friction coefficient with increasing load and speed. The wear behavior of the sintered bodies encompassed abrasive wear, adhesive wear, and fatigue wear. Abrasive wear dominated at low speed and low load, while adhesive wear was prominent at high speed and high load. Increasing speed accentuated adhesive wear characteristics, while increasing load led to the formation of a material layer on the friction ball surface, delaying wear initiation.

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Section: Resultsmentioning

confidence: 96%

Section: Mechanical Properties Testmentioning

confidence: 98%