Improvement of thermally sprayed coating properties by microstructure modification has been considered as a significant solution. Therefore, in this research the effect of dissolved oxygen content and post heat treatment on the formation and distribution of secondary phase particles, particularly in nano-scale in the coatings during spraying and after that were studied. Ni-5 wt% Al powders were...

Gd2O3 nanoparticles were prepared by a two–step process; cathodic electrodeposition followed by heat-treatment method. First, Gd(OH)3 nanoparticles was galvanostatically deposited from nitrate bath on the steel substrate by pulse current (PC) mode. The deposition experiments was conducted at a typical on-time and off-time (ton=1ms and toff=1ms) for 60 min. The electrodeposited precursor was the...

Achieving the mechanical properties of steels after various manufacturing and heat treatment processes is significant and essential. In production lines, after producing the specific and standard samples, mechanical properties have been measured by destructive processes which cause waste of cost and time. In addition, destructive techniques cannot detect the miniscule changes made in mechanical...

In this study nanosized TiO2coatings on the 316L stainless steel substrate were prepared by means of dip-coating technique in which thickness of the coating layer increased byrepeating the coating cycles in two different routes: (I) dipping and drying,respectively, were repeated one, three and five times and finally the dried coated sample was heat treated (single); (II) multiple heat treatment...

Heat treatment was one of the first transformative technologies in the southern African Middle Stone Age (MSA), with many studies in the Cape coastal zone of South Africa identifying it as an essential step in the preparation of silcrete prior to its use in stone tool manufacture. To date, however, no studies have investigated whether heat treatment is necessary for all silcrete types, and how ...

       This article describes the preparation and analysis of nano hydroxyapatite (HA) films on stainless steel 316L through sol-gel technique. The process started with preparation of a nitrate and phosphate sol. After aging the sol for 24 h at room temperature a SS316 substrate was dip-coated and heat-treated at 350 to 450 °C for different times in air. The coating phase and structure on subs...

Milk was thermally processed by Ultra-High-Temperature (UHT, 132 to 154 C for 0 to 12 sec) and Vat (VAT, 66 C to 88 C for 0 to 30 min) systems. Representative milks were fermented into gels by a traditional yoghurt fermentation procedure. Selected functional properties, i.e. whey protein denaturation, gel strength, and their interrelationship were studied. Denaturation behavior of the five whey...

In order to evaluate the effect of pre-heating on biosolubility and water-resistance of alkaline earth silicate (AES) fibers in MgO-SrO-SiO2 and MgO-CaO-SrO-SiO2 compositions, dissolution experiments of the heat-treated (from 110 degrees C to 1,260 degrees C) AES fibers have been carried out in a glycine solution and in distilled water at 40 degrees C for 50 h. The dissolution experiments show ...