Effect of B4C addition on the oxidation behavior of
DOI 10.1016/j.ceramint.2020.02.248 Corpus ID . Effect of B4C addition on the oxidation behavior of borosilicate glass repairing coating for C/C brake materials article Deng2020EffectOB title= Effect of B4C addition on the oxidation behavior of borosilicate glass repairing coating for C/C brake materials author= Juanli Deng and Kaiyue Hu and Baofu Lu and X. Ma and H. Li and
Chat OnlineA Comparison between B4C-ZrB2-Al Composite and B4C-Al
B4C-Al and B4C-ZrB2-Al composites were fabricated by infiltrating aluminum into porous B4C and B4C-ZrB2 preforms in vacuum. The effect of ZrB2 addition on the microstucture and mechanical properties of the B4C-Al composites were investigated. The flexural strength and the fracture toughness of composite improved greatly as the result of ZrB2 addition.
Chat OnlineEffect of B4C Additive on Microstructure and Mechanical
Request PDF Effect of B4C Additive on Microstructure and Mechanical Properties of Low Carbon Al2O3–C Refractories Abstract Al2O3–C refractories were prepared with corundum alumina powder
Chat OnlineEffect of Zn addition on the microstructures and
Jan 21 2020 · The effect of Zn addition on the microstructures and mechanical behaviors of as-cast Mg-2.5Y-1Ce-0.5Mn alloy was investigated. Microstructure observation demonstrated that with the addition of 1wt 3wt and 5wt Zn the ternary phases of LPSO phase LPSO phase W-phase and W-phase T-phase (Mg-Zn-Ce) are precipitated orderly and the volume fraction of eutectic phases
Chat OnlineEffect of Zn addition on the microstructures and
The effect of Zn addition on the microstructures and mechanical behaviors of as-cast Mg-2.5Y-1Ce-0.5Mn alloy was investigated. Microstructure observation demonstrated that with the addition of 1wt 3wt and 5wt Zn the ternary phases of LPSO phase LPSO phase W-phase and W-phase T-phase (Mg-Zn-Ce) are precipitated orderly and the volume fraction of eutectic phases increases.
Chat OnlineEffect of Sc and Zr addition on strengthening of Al-B4C
The addition of Zr and Ti resulted in the formation of protective layers around the B4C particles that were retained after fracture. The B4C fractured transgranularly without debonding from the
Chat OnlineEFFECT OF B C ADDITION ON THE MICROSTRUCTURE
t. Ö. Öge et al. effect of b 4c addition on the microstructure hardness and dry-sliding-wear 433–440 effect of b 4c addition on the microstructure hardness and dry-sliding-wear performance of az91 composites produced with hot pressing vpliv dodatka b4c na mikrostrukturo trdoto in suho drsno obrabo vro e stiskanih kompozitov az91
Chat OnlineEffect of B4C addition on the microstructures and
Dec 01 2010 · title = "Effect of B4C addition on the microstructures and mechanical properties of ZrB2-SiC ceramics" abstract = "ZrB2 has a melting point of 3245°C and a relatively low density of 6.1 g/cm3 which makes this a candidate for application to ultrahigh temperature environments over 2000°C.
Chat OnlineEffect of Addition of Silicon on the Microstructures and
Apr 28 2006 · The microstructures and mechanical properties of continuous porous SiC–Si 3 N 4 composites fabricated by multi‐pass extrusion were investigated depending on the amount of Si powder added. Si powder with different weight percentages (0 5 10 15 20 ) was added to SiC powder to make raw mixture powders with 6 wt Y 2 O 3 –2 wt Al 2 O 3 as sintering additives carbon
Chat OnlineEffect of Y addition on the microstructures and mechanical
Fu sanling et al. / Effect of Y addition on the microstructures was also carried out through X-ray diffraction (XRD). Grain size was determined from a large number of non-overlapping measurements by using a linear intercept method. 3. Res l s a s ss The microstructures of the as-cast alloys are shown in
Chat OnlineA Comparison between B4C-ZrB2-Al Composite and B4C-Al
B4C-Al and B4C-ZrB2-Al composites were fabricated by infiltrating aluminum into porous B4C and B4C-ZrB2 preforms in vacuum. The effect of ZrB2 addition on the microstucture and mechanical properties of the B4C-Al composites were investigated. The flexural strength and the fracture toughness of composite improved greatly as the result of ZrB2 addition.
Chat OnlineEffects of B4C doping on critical current properties of
Aug 19 2005 · The relationships between microstructures crystallinity and critical current properties for B4C doped MgB2 bulks MgB2-5x(B4C)(x) with x = 0 0.04 0.1 0.2 and 0.4 were systematically studied. Decreases of T-c and the a-axis length and deterioration of the crystallinity of MgB2 due to the carbon substitution occurred upon B4C doping.
Chat OnlineEffect of Al2O3 on the Densification and Microstructure of B4C
Jan 27 2017 · This chapter examines the impact of 5 vol. Al2O3 additive on the densification behavior and resulting microstructures of a hot‐pressed commercial B4C powder. Al2O3 was observed as a distinct secondary grains or as smaller particles located at triple junctions and grain boundaries.
Chat OnlineEffect of Y addition on the microstructures and mechanical
Fu sanling et al. / Effect of Y addition on the microstructures was also carried out through X-ray diffraction (XRD). Grain size was determined from a large number of non-overlapping measurements by using a linear intercept method. 3. Res l s a s ss The microstructures of the as-cast alloys are shown in
Chat OnlineEffect of B4C addition on the oxidation behavior of
DOI 10.1016/j.ceramint.2020.02.248 Corpus ID . Effect of B4C addition on the oxidation behavior of borosilicate glass repairing coating for C/C brake materials article Deng2020EffectOB title= Effect of B4C addition on the oxidation behavior of borosilicate glass repairing coating for C/C brake materials author= Juanli Deng and Kaiyue Hu and Baofu Lu and X. Ma and H. Li and
Chat OnlineEffect of Si additions on the microstructure and
Abstract. Dense B 4 C-based materials containing up to 4.9 wt Si have been produced by hot pressing in the temperature range 1600–1700°C. In this process the silicon melts to form a liquid phase which improves the sinterability of the material. The boron carbide partially dissolves in the liquid Si to form silicon carbide between the B 4 C grains. . The relative density bending
Chat OnlineEffects of B4C doping on critical current properties of
Aug 19 2005 · The relationships between microstructures crystallinity and critical current properties for B4C doped MgB2 bulks MgB2-5x(B4C)(x) with x = 0 0.04 0.1 0.2 and 0.4 were systematically studied. Decreases of T-c and the a-axis length and deterioration of the crystallinity of MgB2 due to the carbon substitution occurred upon B4C doping.
Chat OnlineEffect of Y addition on the microstructures and mechanical
Fu sanling et al. / Effect of Y addition on the microstructures was also carried out through X-ray diffraction (XRD). Grain size was determined from a large number of non-overlapping measurements by using a linear intercept method. 3. Res l s a s ss The microstructures of the as-cast alloys are shown in
Chat OnlineEffect of iron addition on the microstructures and
Oct 05 2018 · Figure 2 presents the microstructures of hypereutectic Al-20 Si alloys without and with the addition of Fe. It is obvious that the addition of Fe can remarkably refine the primary Si phases. Figure 3 shows the average size and the aspect ratio of primary Si in
Chat OnlineMicrostructures and Mechanical Properties of B4C-TiB2
B4C-TiB2 composite was prepared using hot pressure sintering. The microstructures and mechanical properties of the B4C-TiB2 composite were investigated. The B4C-TiB2 composite with 43 mass TiB2 showed the optimized properties. The relative density hardness flexural strength and fracture toughness of that were 98.2 25.9 GPa 458 MPa and 8.7 MPa•m1/2 respectively.
Chat OnlineEffects of C Addition on the Microstructures of As-Cast Cu
Effects of C Addition on the Microstructures of As-Cast Cu–Fe–P Alloys Wei Chen 1 2 Xiaona Hu 1 Wei Guo 1 Jin Zou 1 Keming Liu 3 Deping Lu 1 and Dunqiang Tan 2 1 Institute of Applied Physics Jiangxi Academy of Sciences Nanchang 330096 China 2 School of Materials Science and Engineering Nanchang University Nanchang 330031 China
Chat OnlineEffect of B4C Additive on Microstructure and Mechanical
Request PDF Effect of B4C Additive on Microstructure and Mechanical Properties of Low Carbon Al2O3–C Refractories Abstract Al2O3–C refractories were prepared with corundum alumina powder
Chat OnlineBeneficial effects of B4C addition on the microstructure
Jan 10 2019 · The effect of B 4C addition on the microstructure phase composition and mechanical properties of SiC joints was investigated by X-ray diffraction spectrometry (XRD) scanning electron microscopy (SEM) energy dispersion spectroscopy (EDS) electron back scattered diffraction (EBSD) transmission electron microscopy (TEM) Vickers hardness test and shear strength test.
Chat OnlineThe effects of B4C addition on the microstructure and
Dec 01 2017 · The addition of B 4 C was found to have negative effect on the density and hardness of SiC. The fracture toughness however was enhanced with the increase in the B 4C content. The impediment of crack propagation by the B4 C phase was found to be related to the improvement of fracture toughness as the amount of B 4 C content was increased
Chat OnlineComparison of the Effects of B4C and SiC Reinforcement in
Abstract. Reinforcement kind and ratios have significant effects on the metal matrix composite (MMC) materials. In this study two different (B 4 C and SiC) reinforcement compounds between 5 and 15 wt reinforcement ratios were used in Al-Si main matrix composite materials. Samples were produced via powder metallurgy (PM) method and were subjected to metallographic investigation with SEM EDS
Chat OnlineEffect of iron addition on the microstructures and
Oct 05 2018 · Figure 2 presents the microstructures of hypereutectic Al-20 Si alloys without and with the addition of Fe. It is obvious that the addition of Fe can remarkably refine the primary Si phases. Figure 3 shows the average size and the aspect ratio of primary Si in
Chat OnlineCOMBINED EFFECT OF B4C PARTICLES ADDITION AND
COMBINED EFFECT OF B 4 C PARTICLES ADDITION AND ARTIFICIAL AGING ON AL2218 ALLOY COMPOSITES Vidyadhar Pujar 1 Srinivas H K 2 Madeva Nagaral 3 The microstructures of the composites were examined by scanning electron microscopy. Further mechanical behavior of Al2218 alloy and Al2218 alloy with 2 4 6 and 8 wt. B
Chat Online
