Plasma Oscillatory Pressure Sintering of Mo-9Si-8B Alloy with ZrB2 Addition

Xiangyu, Ding; Guo, Zhimei; Li, Xiangrong; Li, Zhuoyue; Li, Xin

doi:10.3390/ma15072387

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…Fiantok et al [ 8 ] researched a ZrB 2 thin film alloyed with Ag, and their conclusions indicated a significant improvement in ductility and tribological properties but at the cost of reduced hardness. Ding et al [ 9 ] investigated the addition of ZrB 2 into Mo-9Si-8B alloys and found that doping 2.5 wt.% ZrB 2 could obviously increase the fracture toughness of the alloy and achieve the effect of reducing mass loss by 80.3%. Guan et al [ 10 ] prepared ZrB 2 nanoparticles in an Al matrix and obtained a significant shear stress improvement (from 255 MPa to 491 MPa); meanwhile, a dislocation-strengthening effect caused by dispersed ZrB 2 particles was observed.…”

Section: Introductionmentioning

confidence: 99%

ZrB2–Copper–Graphite Composite for Electric Brushes: Positive Effect of ZrB2 Addition on Composite Properties

Feng,

Ding,

Wang

et al. 2024

Materials

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A ZrB2–copper–graphite composite was produced through powder metallurgy and was tested as a new electric brush material. The aim of this paper was to study the effect of ZrB2 addition on the composite’s properties. Besides its physical properties such as density and resistivity, its mechanical properties, such as hardness, bending strength and wear resistance, were studied. A scanning electron microscope (SEM) was used to study the morphology of the wear surface, and a configured energy-dispersive spectrometer (EDS) was used to research the chemical composition of the samples. The results showed that, with the addition of ZrB2, the composite’s properties such as density, resistivity, hardness, and bending strength improved significantly. Compared with samples without ZrB2, samples with the addition of 4% ZrB2 achieved a hardness of 87.5 HRA, which was improved by 45.8%, and a bending strength of 53.1 MPa, which was increased by nearly 50.0%. Composites with 1% content of ZrB2 showed the best wear resistance under non-conductive friction; however, under conductive friction, composites with 4% content of ZrB2 showed better wear resistance.

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Section: Introductionmentioning

confidence: 99%

ZrB2–Copper–Graphite Composite for Electric Brushes: Positive Effect of ZrB2 Addition on Composite Properties

Feng,

Ding,

Wang

et al. 2024

Materials

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“…However, porcelains have clear disadvantages, such as high brittleness and high crack growth rates, which limit their use in fields, such as mechanical washing 1 . At present, many methods have been used to overcome the brittleness issue and strengthen porcelain products, such as whisker enhancement, 2–4 dispersion enhancement, 5,6 and prestress enhancement 7,8 . Whisker enhancement and dispersion enhancement have been mainly used in the fields of advanced and traditional porcelain, whereas prestress reinforcement has commonly been applied in the fields of glass and concrete; however, in recent years, prestress reinforcement has become more widely used in the field of porcelain 9–11 …”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and strengthening mechanism of SiC particle reinforced porcelain

Zhou,

Li,

Sun

et al. 2023

Int J Applied Ceramic Tech

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Mechanical properties of porcelain based on feldspar porcelain as a matrix with SiC particles as a reinforcing phase were studied in terms of the effects of SiC content, firing temperature, and holding time. A maximum flexural strength of 122 ± 4 MPa was achieved for a sample with 8 wt% SiC content treated at 1260°C for 30 min, which is 90.6% as high as than that of the unmodified matrix (64 ± 5 MPa). The fracture toughness and elastic modulus of the former sample were 1.71 MPa · m1/2 and 89.975 GPa, respectively. Because the thermal expansion coefficient of SiC (4.40 × 10−6/°C) is smaller than that of the glass phase (6.60 × 10−6/°C), the SiC particles remain in a state of compressive stress after the porcelain cooling. This characteristic restricts crack growth and offsets the tensile stress of the glass phase, restraining crystal growth owing to the tensile stress pinning the grains, such that the mechanical properties are improved.

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Plasma Oscillatory Pressure Sintering of Mo-9Si-8B Alloy with ZrB2 Addition

Cited by 2 publications

References 23 publications

ZrB2–Copper–Graphite Composite for Electric Brushes: Positive Effect of ZrB2 Addition on Composite Properties

ZrB2–Copper–Graphite Composite for Electric Brushes: Positive Effect of ZrB2 Addition on Composite Properties

Mechanical properties and strengthening mechanism of SiC particle reinforced porcelain

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