Numerical Analysis of Displacement of Circular Discs Based On Boron Carbide (B4C) -Silicon Carbide (SİC) and Silicon Nitride (Si3N4) materials

In this study, nanoindentation is used to determine Young's modulus of chemically vapor deposited films consisting of silicon carbide, silicon nitride, boron carbide, boron nitride, and silicon dioxide. Diethylsilane and ditertiarybutylsilane were used as precursors in the synthesis of the silicon-based material, while triethylamine borane complex was used for the boron-based material. The modulus of these films was observed to be dependent on the processing conditions and resulting composition of the deposits. For the silicon carbide, silicon nitride, boron carbide, and boron nitride films, the carbon content in the films was observed to increase significantly with higher deposition temperatures, resulting in a corresponding decrease in values of Young's modulus. The composition of the silicon dioxide films was near stoichiometry over the investigated deposition temperature range (375–475 °C) with correspondingly small variations in the micromechanical properties. Subsequent annealing of these oxide films resulted in a significant increase in the values of Young's modulus due to hydrogen and moisture removal.

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Tribological performances of the boron carbide coatings sliding against silicon carbide and silicon nitride balls under various relative humidity conditions

Ceramics International ◽

10.1016/j.ceramint.2019.10.008 ◽

2020 ◽

Vol 46 (3) ◽

pp. 3074-3081 ◽

Cited By ~ 2

Author(s):

Xueqian Cao ◽

Lunlin Shang ◽

Yongmin Liang ◽

Zhibin Lu ◽

Guangan Zhang ◽

...

Keyword(s):

Silicon Carbide ◽

Silicon Nitride ◽

Relative Humidity ◽

Boron Carbide ◽

Carbide Coatings

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POSSIBILITY OF COMPOSITE SILICON NITRIDE + SILICON CARBIDE (Si3 N4SiC) POWDER PRODUCTION IN THERMAL PLASMA

High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes) ◽

10.1615/hightempmatproc.v15.i4.90 ◽

2011 ◽

Vol 15 (4) ◽

pp. 321-328 ◽

Cited By ~ 3

Author(s):

Zivota G. Kostic ◽

Predrag Lj. Stefanovic ◽

Pavle B. Pavlovic ◽

Dejan B. Cvetinovic

Keyword(s):

Silicon Carbide ◽

Silicon Nitride ◽

Thermal Plasma ◽

Powder Production ◽

Composite Silicon

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Layer thickness optimization of ceramic composite for body armor by considering volume, weight, and cost

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/09544062211015791 ◽

2021 ◽

pp. 095440622110157

Author(s):

Yuksel Palaci ◽

Mustafa M Arikan

Keyword(s):

Silicon Nitride ◽

Boron Carbide ◽

Layer Thickness ◽

Ceramic Composite ◽

Material Selection ◽

Composite Layer ◽

Ceramic Materials ◽

Ternary Diagram ◽

Body Armor ◽

Volume Weight

This study investigates visualization of optimized layer thickness with a ternary diagram by considering Volume, Weight, and Cost priorities to determine the composite structure of alternative ceramics to use in body armor application by using the Digital Logic Method (DLM). Three criterion priorities (volume, weight, cost) have been investigated to help designers decide on optimum ceramic material for their applications. Alumina (Al2O3), silicon carbide (SiC), silicon nitride (Si3N4), and boron carbide (B4C) were analyzed and ranked to decide for material selection based on priorities. The analysis results showed that silicon nitride (Si3N4) had the maximum performance index (PI) point (80.0) based on the volume priority. On the other hand, while boron carbide (B4C) had the maximum PI point (76.4) in terms of the weight priority, alumina (Al2O3) was determined to be the best material according to the cost priority. PI point of alumina (Al2O3) was calculated as 100. A ternary diagram was developed for decision-makers to visualize material selection performances. The optimization of the ceramic composite layer thickness of the alternative ceramic materials is visualized by considering three criteria.

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