Probabilistic relation between stress intensity and fracture toughness in ceramics

Yang, Shuangge; Zhang, Chunguo; Zhang, Xiancheng

doi:10.1016/j.ceramint.2020.05.173

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…According to principle of materials fracture mechanic, pores present would act as stress concentration points, and they are likely to initiate crack in ceramic bodies. Therefore, ceramics with higher apparent porosity would possess weaker points and subsequently reducing the MOR's mechanical strength [87][88][89].…”

Section: Correlation Between Firing Shrinkage Water Absorption Appare...mentioning

confidence: 99%

Application of General Full Factorial Statistical Experimental Design’s Approach for the Development of Sustainable Clay-Based Ceramics Incorporated with Malaysia’s Electric Arc Furnace Steel Slag Waste

et al. 2021

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This study aims to optimize the composition (body formulation) and firing temperature of sustainable ceramic clay-based ceramics incorporated with electric arc furnace (EAF) steel slag waste using general full factorial design (GFFD). The optimization is necessary to minimize drawbacks of high iron oxide’s fluxing agent (originated from electric arc furnace, EAF steel slag waste), which led to severe surface defects and high closed porosity issue of the ceramics. Statistical analysis of GFFD including model adequacy checking, analysis of variance (ANOVA), interaction plots, regression model, contour plot and response optimizer were conducted in the study. The responses (final properties of ceramics) investigated were firing shrinkage, water absorption, apparent porosity, bulk density and modulus of rupture (MOR). Meanwhile, the factors employed in experimental parameters were weight percentage (wt.%) of EAF slag added and firing temperature. Upon statistical analysis, GFFD has deduced that wt.% amount of EAF slag added and firing temperatures are proven to significantly influence the final properties of the clay-based ceramic incorporated with EAF slag. The results of conducted statistical analysis were also highly significant and proven valid for the ceramics. Optimized properties (maximum MOR, minimum water absorption and apparent porosity) of the ceramic were attained at 50 wt.% of EAF slag added and firing temperature of 1180 °C.

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Section: Correlation Between Firing Shrinkage Water Absorption Appare...mentioning

confidence: 99%

Application of General Full Factorial Statistical Experimental Design’s Approach for the Development of Sustainable Clay-Based Ceramics Incorporated with Malaysia’s Electric Arc Furnace Steel Slag Waste

et al. 2021

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“…Ceramic cutting tools are widely used because of their advantages of high-temperature resistance, good wear resistance, high hardness, good chemical stability, low affinity for the processed workpiece material, and considerable resistance to producing chip tumors [ 2 , 3 , 4 ]. However, low flexural strength [ 5 ] and low fracture toughness [ 6 ] in ceramic materials lead to failure, such as edge breakage and fracture [ 7 ], when ceramic tools are subjected to high temperatures and high impact stress [ 8 ] during high-speed dry cutting.…”

Section: Introductionmentioning

confidence: 99%

Addition of Nano CaF2@SiO2 and SiC Whiskers in Ceramic Tools for Wear Reduction and Improved Machinability

et al. 2022

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The addition of CaF2@SiO2 and SiC whiskers to ceramic tools can improve their flexural strength and fracture toughness, reduce surface damage, and improve their cutting performance. The cutting experiments showed that under the same cutting conditions, the surface roughness of the workpiece processed with the Al2O3/TiC/SiC/CaF2@SiO2 (ATSC10) tool was significantly lower than that of the workpiece processed with the Al2O3/TiC/ SiC (ATS) tool. Additionally, the main cutting force and cutting temperature when cutting with the ATSC10 tool were lower by 30 and 31.7%, respectively. These results were attributed to the precipitation of CaF2 from the nanocoated particles during cutting and the formation of a uniform and continuous lubricating film on the surface of the tool. The wear on the front surface of the ATS tool was mainly adhesive, and that on the back tool surface was mainly abrasive. For ATSC10, the main forms of wear on the tool front surface were adhesive and abrasive, whereas the main form of wear on the tool back surface was abrasive with slight adhesive wear. The addition of nano-coated particles and whiskers improved the mechanical properties of the cutting tool while maintaining good cutting performance.

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Fracture model of meso-ceramics based on relative size and prediction of fracture toughness and bending strength

Zhang,

Zhao,

Guan

et al. 2023

Ceramics International

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Probabilistic relation between stress intensity and fracture toughness in ceramics

Cited by 6 publications

References 33 publications

Application of General Full Factorial Statistical Experimental Design’s Approach for the Development of Sustainable Clay-Based Ceramics Incorporated with Malaysia’s Electric Arc Furnace Steel Slag Waste

Application of General Full Factorial Statistical Experimental Design’s Approach for the Development of Sustainable Clay-Based Ceramics Incorporated with Malaysia’s Electric Arc Furnace Steel Slag Waste

Addition of Nano CaF2@SiO2 and SiC Whiskers in Ceramic Tools for Wear Reduction and Improved Machinability

Fracture model of meso-ceramics based on relative size and prediction of fracture toughness and bending strength

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