scholarly journals Influence of cobalt addition and calcination temperature on the physical properties of BaFe12O19 hexaferrites nanoparticles

2020 ◽  
Vol 7 (1) ◽  
pp. 015057
Author(s):  
M Rekaby ◽  
H Shehabi ◽  
R Awad
Keyword(s):  
Physical Properties ◽  
Calcination Temperature ◽  
Cobalt Addition

Effects of Calcination Temperature on the Physical Properties and Hydrogen Evolution Activities of La5 Ti2 Cu(S1- x Se x )5 O7 Photocatalysts

2017 ◽  
Vol 35 (1) ◽  
pp. 1700275 ◽  
Author(s):  
Swarnava Nandy ◽  
Takashi Hisatomi ◽  
Masao Katayama ◽  
Tsutomu Minegishi ◽  
Kazunari Domen
Keyword(s):  
Physical Properties ◽  
Hydrogen Evolution ◽  
Calcination Temperature

ELECTRITE CO-6

Alloy Digest ◽  
1963 ◽  
Vol 12 (6) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
High Speed ◽  
Elevated Temperatures ◽  
High Speed Steel ◽  
Heat Treating ◽  
Steel Company ◽  
Aisi Type ◽  
Red Hardness ◽  
Cobalt Addition

Abstract ELECTRITE CO-6 is a high-speed steel of the 6 molybdenum-6 tungsten type to which 9% cobalt has been added. This cobalt addition increases the red hardness and permits a retention of greater cutting hardness at elevated temperatures. It is designated as SAE-M36 and AISI Type M36. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-35. Producer or source: Latrobe Steel Company. Originally published July 1955, revised June 1963.

Influence of calcination temperature on the physical properties of nano-titania prepared by sol-gel/hydrothermal method

2015 ◽  
Vol 89 (10) ◽  
pp. 1896-1906 ◽  
Author(s):  
H. A. Hamad ◽  
M. M. Abd El-latif ◽  
A. B. Kashyout ◽  
W. A. Sadik ◽  
M. Y. Feteha
Keyword(s):  
Physical Properties ◽  
Hydrothermal Method ◽  
Calcination Temperature ◽  
Sol Gel

Research on the Effects of Calcination Temperature on the Physical Properties of Titanium Gypsum

2014 ◽  
Vol 711 ◽  
pp. 189-192
Author(s):  
Yan Liu ◽  
Guo Zhong Li ◽  
Chuan Wei Du
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Mechanical Strength ◽  
Physical Properties ◽  
Calcination Temperature ◽  
Physical Effects

This paper studies the different calcination temperature on the properties of titanium gypsum physical effects, and the mechanism of the effects are discussed in this paper. Research has shown that with the increase of calcination temperature, the mechanical properties of titanium gypsum present a trend of after rising first down. When the calcination temperature is 180 °C, titanium gypsum calcined product mainly for the half water gypsum phase, the mechanical strength of samples of titanium gypsum achieve maximum at this time, The mechanical properties of titanium gypsum samples: 2h flexural strength was 0.94MPa, 2h compressive strength was 1.87MPa, absolutely dry flexural strength was 1.54 MPa and absolutely dry compressive strength was 2.52 MPa.

Synthesis and Control of Physical Properties of Titania Nanoparticles as a Function of Synthetic Parameters

2008 ◽  
Vol 8 (9) ◽  
pp. 4738-4742 ◽  
Author(s):  
Romana Khan ◽  
Sun Woo Kim ◽  
Tae-Jeong Kim
Keyword(s):  
Reaction Time ◽  
Transition Metals ◽  
Physical Properties ◽  
Band Gap ◽  
Calcination Temperature ◽  
Photophysical Properties ◽  
Anatase Phase ◽  
Sol Gel ◽  
Titania Nanoparticles ◽  
And Control

TiO2 nanoparticles were prepared by a two step acid-base catalyzed sol–gel method. The effects of key synthetic parameters, including water/alkoxide ratio, pH, reaction time, and calcination temperature on the physical properties of the final product were investigated. The current study revealed that the desired properties can be inherited in to TiO2 by controlling the key parameters to the optimized values. It was found that the grain size decreased with an increase in water/alkoxide ratio and reaction time, increased with calcination temperature while remained unaffected by variation in pH. The longer reaction time not only increases surface area but also anatase phase formation can be accomplished even under high pH. Band-gap was also found to reduce with reaction time >48 h. Change of pH during synthesis to high value resulted into mesoporous TiO2 with anatase as a sole phase. The TiO2 nanoparticles were also doped by first row transition metals in order to investigate their effects on the photophysical properties. The photoluminescence characteristic of the TiO2 was altered differently by different doping metals. Doping with first row transition metals reduces the band-gap of TiO2 in the following order: Cr > Mn > Fe ∼ V > Co ∼ Ni > Cu ∼ Zn.

scholarly journals Effect of Calcination Temperature on Physical properties of Ni0.6Zn0.4Fe2O4  Ferrite nanoparticles

2021 ◽  
Author(s):  
sivakumar pendyala ◽  
G.k.Sivasankara Yadav
Keyword(s):  
Physical Properties ◽  
Crystallite Size ◽  
Calcination Temperature ◽  
Sol Gel ◽  
Average Crystallite Size ◽  
Combustion Method ◽  
Ferrite Nanoparticles ◽  
Calcination Temperatures ◽  
Auto Combustion ◽  
Lcr Meter

Abstract The influence of Calcination temperature on the physical properties of Ni0.6Zn0.4Fe2O4 ferrite nanoparticles were investigated. These ferrite nanoparticles have been synthesized by sol-gel auto combustion method using citric acid as fuel agent at different calcination temperatures (4000C, 5000C and 6000C). The Morphological investigation, average crystallite size and microstructure of the material were examined by using X-ray diffraction (XRD) and confirmed by field emission scanning electron microscope (FESEM) and FTIR spectra. The Effects of calcination temperature on the dielectric and magnetic properties were calculated by using LCR meter and vibrating sample magnetometer (VSM). The XRD result shows a single-phase cubic spinel structure with average crystallite size increases from 27 to 29.5 nm, with an increase of temperature. The highest saturation magnetization was found at a calcination temperature 6000C with value 80.39 emu/g, and the value coercive field (Hc) was inverse with the crystallite size.

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