TY - JOUR
T1 - Mechanical properties of ZrB2–SiC ceramics prepared by polymeric precursor route
AU - He, Jiabei
AU - Cao, Yejie
AU - Zhang, Yinxia
AU - Wang, Yiguang
N1 - Publisher Copyright:
© 2018 Elsevier Ltd and Techna Group S.r.l.
PY - 2018/4/15
Y1 - 2018/4/15
N2 - ZrB2–SiC composite ceramics with varying compositions (6.4, 22.3, and 61.5 vol% ZrB2–SiC) were synthesized and spark plasma sintered (SPS) for 30 min under argon atmosphere. Ceramics showed relatively uniformly distributed phases with small spherical crystallized grains. Vickers hardness and fracture toughness of ceramics were measured, and scratch and tribological behaviors of sintered ceramic specimens were also investigated. According to experimental results, materials having different inter- and trans-granular fractures showed different wear loss, friction efficient, and tribofilm morphology. Ceramics chemically reacted with moisture while being tribotested, leading to the formation of a tribofilm on the bottom of wear track. Characteristics of silica/hydride silica revealed the formation of tribofilms with different morphologies, thereby implying that several key factors are involved in determining the efficiency of this process.
AB - ZrB2–SiC composite ceramics with varying compositions (6.4, 22.3, and 61.5 vol% ZrB2–SiC) were synthesized and spark plasma sintered (SPS) for 30 min under argon atmosphere. Ceramics showed relatively uniformly distributed phases with small spherical crystallized grains. Vickers hardness and fracture toughness of ceramics were measured, and scratch and tribological behaviors of sintered ceramic specimens were also investigated. According to experimental results, materials having different inter- and trans-granular fractures showed different wear loss, friction efficient, and tribofilm morphology. Ceramics chemically reacted with moisture while being tribotested, leading to the formation of a tribofilm on the bottom of wear track. Characteristics of silica/hydride silica revealed the formation of tribofilms with different morphologies, thereby implying that several key factors are involved in determining the efficiency of this process.
KW - Tribofilm
KW - Tribological behavior
KW - ZrB–SiC
UR - http://www.scopus.com/inward/record.url?scp=85040359614&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2018.01.052
DO - 10.1016/j.ceramint.2018.01.052
M3 - Article
AN - SCOPUS:85040359614
SN - 0272-8842
VL - 44
SP - 6520
EP - 6526
JO - Ceramics International
JF - Ceramics International
IS - 6
ER -