Microstructure, Mechanical Characteristics, and Wear Performance of Spark Plasma Sintered TiB2–Si3N4 as Affected by B4N Doping

Ramesh, B.; Showman, Essmat; Abraar, S. A. Muhammed; Saxena, Kuldeep K.; Tharwan, Mohammed; Alsaadi, Naif; Sofyani, Sharaf Al; Elsheikh, Ammar H.

doi:10.3390/ma15207096

Cited by 3 publications

(1 citation statement)

References 48 publications

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“…When partial shading conditions (PSC) exist, the operational effectiveness of the power generating system is impacted. Throughout the process, the power-voltage distribution of the system shows several peaks [6][7][8][9]. To achieve energy efficiency, many studies have been conducted by using the location of PCM for example near to inside wall, near to outside wall etc [10].…”

Section: Introductionmentioning

confidence: 99%

Analysis of efficient building for energy conversion and storage using phase change material

Ahmed,

C P,

Reddy

et al. 2024

E3S Web of Conf.

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Building energy efficiency is now a top priority because of the major negative effects that may happen on the society, the economy, and the environment. In various parts of the world, several researchers have worked on ways of achieving methods that can use phasechange materials as thermal storage. This is because these technologies have the potential to greatly reduce energy consumption when combined with solar power. PCMs store thermal energy in ways quite different than ordinary construction materials. These materials make use of latent heat rather than sensible heat. Therefore, phase-changed materials possess a notable advantage over sensible heat thermal energy storage materials with respect to storing and releasing heat. As a result, this paper was concerned with exploring the possibility of building energy conversion and storage systems using phase change material.

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Section: Introductionmentioning

confidence: 99%

Analysis of efficient building for energy conversion and storage using phase change material

Ahmed,

C P,

Reddy

et al. 2024

E3S Web of Conf.

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High-Temperature Oxidation Behavior of TiB2-HfB2-Ni Cermet Material

2022

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To analyze the high-temperature oxidation behavior of TiB2-HfB2-Ni cermet material, TiB2-HfB2-Ni cermets were fabricated by hot-pressing sintering technology. The oxidation resistance and the thermal fracture of TiB2-HfB2-Ni cermet were investigated at 1100 °C for 1, 4, 7, and 10 h, respectively. Before oxidation, TiB2-HfB2-Ni cermet, consisting of TiB2, HfB2, and Ni, had the core-rim structure. The core was TiB2 grain and the rim was composed of Ni and solid solution (Ti, Hf)B2. After oxidation at 1100 °C, the oxides of the TiB2-HfB2-Ni cermet were mainly TiO2, HfO2, B2O3, and NiO, which the oxidation process abided by the parabolic law. With the oxidation time increasing from 1 h to 10 h, the oxidation degree of the TiB2-HfB2-Ni cermet increased, and the oxide layer became thicker. The oxide layer was thin and dense after oxidation at 1100 °C for 1 h. An obvious boundary was discovered between the transition layer and the substrate layer after oxidation at 1100 °C for 7 h. The thermal fracture occurred in the contact regions of different layers at 1100 °C for 10 h. TiB2-HfB2-Ni took place in oxidation at different levels from the outer to the inner, and the components of different oxide layers were certainly distinct.

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Formation of TiB2–MgAl2O4 Composites by SHS Metallurgy

Yeh

Zheng

2023

Materials

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TiB2–MgAl2O4 composites were fabricated by combustion synthesis involving metallothermic reduction reactions. Thermite reagents contained Al and Mg as dual reductants and TiO2 or B2O3 as the oxidant. The reactant mixtures also comprised elemental Ti and boron, as well as a small amount of Al2O3 or MgO to serve as the combustion moderator. Four reaction systems were conducted and all of them were exothermic enough to proceed in the mode of self-propagating high-temperature synthesis (SHS). The reaction based on B2O3/Al/Mg thermite and diluted with MgO was the most exothermic, while that containing TiO2/Al/Mg thermite and Al2O3 as the diluent was the least. Depending on different thermites and diluents, the combustion front temperatures in a range from 1320 to 1720 °C, and combustion wave velocity from 3.9 to 5.7 mm/s were measured. The XRD spectra confirmed in situ formation of TiB2 and MgAl2O4. It is believed that MgAl2O4 was synthesized through a combination reaction between Al2O3 and MgO, both of which can be totally or partially produced from the metallothermic reduction of B2O3 or TiO2. The microstructure of the TiB2–MgAl2O4 composite exhibited fine TiB2 crystals surrounded by large densified MgAl2O4 grains. This study demonstrated an energy-saving and efficient route for fabricating MgAl2O4-containing composites.

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Microstructure, Mechanical Characteristics, and Wear Performance of Spark Plasma Sintered TiB2–Si3N4 as Affected by B4N Doping

Cited by 3 publications

References 48 publications

Analysis of efficient building for energy conversion and storage using phase change material

Analysis of efficient building for energy conversion and storage using phase change material

High-Temperature Oxidation Behavior of TiB2-HfB2-Ni Cermet Material

Formation of TiB2–MgAl2O4 Composites by SHS Metallurgy

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