Woignier, Thierry Primera, Juan Alaoui, Adil Dieudonne, Philippe Duffours, Laurent Beurroies, Isabelle Calas-Etienne, Sylvie Despestis, Florence Faivre, Annelise Etienne, Pascal
...
Published in
Gels
Silica aerogels are known to be materials with exceptional characteristics, such as ultra-low density, high surface area, high porosity, high adsorption, and low-thermal conductivity. In addition, these unique properties are mainly related to their specific processing. Depending on the aerogel synthesis procedure, the aerogels texture can be tailor...
Palmeira, A. A. Cangani, M. P. Rodrigues Jr, D. Strecker, K. Santos, C. dos
Abstract The fracture toughness of 3Y-TZP ceramics obtained from a nanocrystalline powder with an optimized microstructure and highly transformable tetragonal grains was investigated. Samples of ZrO2-3 mol% Y2O3 were sintered at temperatures between 1250 and 1400 °C, with isothermal holding times of up to 16 h. Samples sintered at 1250 °C exhibited...
Martini, E. Pavese, A. Tabacchi, D. Fortuna, D. M. Fortuna, A.
Abstract This paper aims at exploring the possibility of using a great percentage of recycled materials into vitreous china (VC), thus, contributing to urban waste decrease while lowering the industry’s buying costs, previously optimized, for the sanitaryware production. The recycled blend was introduced in the ceramic slip, Sanitser VC, and used i...
Kozhakhmetov, Yernat Skakov, Mazhyn Mukhamedova, Nuriya Kurbanbekov, Sherzod Ramankulov, Sherzod Wieleba, Wojciech
Published in
Materials Testing
This article presents results of the study on the dependence of the structural-phase state of alloys based on Ti-12.52Al-43.08Nb system (wt.-%) on the temperature of spark plasma sintering. It has been established that spark plasma sintering of Ti-Al-Nb alloys under the temperature of 1500 °C resulted in melting the aluminum component of the mixtur...
Xuewen, Zong Jian, Zhang Hanguang, Fu
Published in
Materials Testing
Selective laser melting at various laser inclination angles was used to prepare Hastelloy X alloy specimens. The morphology, fracture, tensile strength, stress, and strain of Hastelloy X alloy specimens were studied using optical microscopy, scanning electron microscopy, and a tensile tester. The temperature field of the manufacturing process was a...
Wapande, Sadam Hamis Elibol, Cagatay Konar, Murat
Published in
Materials Testing
This study was conducted to investigate the effect of low-density polyethylene on the microstructural and mechanical properties of 3105 aluminum composites produced by the continuous hot-press method. This production method ensures superior flatness to the composite and excellent peel strength between the composite plies. To this end, the bond betw...
Açar, İsmail Gülenç, Behçet
Published in
Materials Testing
The quality of welded joints depends on the most optimal welding parameters and the selection of shielding gas type. The shielding gas was selected for joining stainless steels through gas metal arc welding methods by considering properties such as chemical-metallurgical interaction of shielding gas and the molten weld metal during the welding proc...
Chung, Sang-Yeop Sikora, Pawel Kim, Dong Joo El Madawy, Mohamed E. Abd Elrahman, Mohamed
Lightweight aggregate concrete (LWAC) has relatively larger porosity than conventional concrete, mainly due to the incorporation of porous lightweight aggregates. The types of used lightweight aggregates are critical in determining the physical properties of LWAC, and it is therefore important to examine their effects on the durable characteristics...
Ghanem, Abdelkarim Terres, Mohamed Ali
Published in
Metallurgical Research & Technology
Carbonitriding is an important industrial process applied for the improvement of the mechanical characteristics of the component of many steels employed in several machines parts like cam shafts, crank shafts and gears to enhance fatigue strength and wear resistance. In this study, the influence of the gaseous carbonitriding on the enhancement of s...
Bhat, Mohd Nadeem Mushtaq, Shuhaib Mohbe, Manoj
Published in
Sādhanā
In the current scenario, the energy crisis is on the continuous rise; researchers and academicians are actively working towards a common goal of energy savings by different means. Spheroidal graphite cast iron (SGI) is one of the major alloys used for automobile and structural applications. Manufacturing industries are more focused on using lightwe...