Spectroscopic Properties of NiO, PbO, CaO and MgO Ionic Crystals Synthesized by Ball Milling Method

2019 ◽  
Vol 11 (2) ◽  
pp. 97-107 ◽  
Author(s):  
G. Ranjith Kumar ◽  
D. Baba Basha ◽  
K. Chandra Babu Naidu ◽  
S. Ramesh ◽  
K. Srinivas
2021 ◽  
Author(s):  
Huijuan Shao ◽  
Peng Yao ◽  
Yi Chen ◽  
Yue Yao ◽  
Guangbi Li ◽  
...  

α-Fe2O3/g-C3N4, is attributed to a Z-scheme structure, and with excellent photocatalytic ability. But this composites were prepared by conventional, the calcination/hydrothermal method. Above two methods are time-consuming and high cost...


2017 ◽  
Vol 5 (6) ◽  
pp. 5599-5607 ◽  
Author(s):  
Carla A. Orge ◽  
O. Salomé G.P. Soares ◽  
Joaquim L. Faria ◽  
M. Fernando R. Pereira

2011 ◽  
Vol 311-313 ◽  
pp. 1281-1285 ◽  
Author(s):  
Pei Hao Lin ◽  
Lei Wang ◽  
Shun Kang Pan ◽  
Hua Mei Wan

The NdFe magnetic absorbing materials were prepared by rapid solidification and high-energy ball milling method. The effect of high-energy ball milling on particle morphology, organizational structure and microwave absorbing properties of NdFe magnetic absorbing materials were analyzed with the aid of X-ray diffractometer, scanning electron microscope and vector network analysis. The results show that the Nd2Fe17 and α-Fe phase are refined, the particles become smaller and thinner; the span-ratio of the particles increases along with time during the process of high-energy ball milling; and meanwhile, the frequency of absorbing peak reduces. The absorbing bandwidth broadens as the increase of the time of ball milling, except that of 48h.The minimum reflectance of the powder decreases from -22dB to - 44dB under the circumstances that the time of high energy ball milling reaches 48h and the thickness of the microwave absorbing coating is 1.5mm. But it rebounds to about - 6dB when the time of ball milling reaches 72h.


2018 ◽  
Vol 922 ◽  
pp. 143-148 ◽  
Author(s):  
Shao Chun Xu ◽  
Zi Jing Wang ◽  
Ya Ming Zhang ◽  
Qiang Zhi ◽  
Xu Dong Wang ◽  
...  

In this paper, clay bonded silicon carbide was prepared through pressureless sintering process with silicon carbide dusting powder as raw materials and clay as sintering additive. The effects of the ball-milling method, sintering temperature and clay contents on the density, microstructure and mechanical properties of clay bonded silicon carbide refractory were studied. The planetary ball-milling was a good method to improve the density of the green body, and the density was increased simultaneously with an increase of the clay content. The liquid phase derived from low-melting eutectic mixtures of clay could prevent the superlative oxidation of silicon carbide. The mass increment of sintered samples decreased firstly and then increased at the sintering temperature range from 1250 to 1500 °C. The open porosity of samples decreased with the clay addition at a content range from 10 to 30 wt.%. The bending strength of the samples decreased firstly and then increased with the clay addition increasing. The optimum condition for preparing clay bonded silicon carbide with silicon carbide dusting powder was sintering at 1350 °C with 20 wt.% clay, and the obtained sample with a porosity of 24% achieved the bending strength of 78±7 MPa.


2021 ◽  
Vol 136 (10) ◽  
Author(s):  
Naradala Jayarambabu ◽  
Linganaboina Srinivasa Rao ◽  
Allam Akshaykranth ◽  
Tumu Venkatappa Rao ◽  
Rajaboina Rakesh Kumar

2008 ◽  
Vol 53 (9(5)) ◽  
pp. 3029-3032 ◽  
Author(s):  
S. Hamaguchi ◽  
S. Ishizaki ◽  
M. Kobayashi
Keyword(s):  

Ionics ◽  
2020 ◽  
Vol 26 (7) ◽  
pp. 3591-3597
Author(s):  
C. Indira Priyadharsini ◽  
G. Marimuthu ◽  
T. Pazhanivel ◽  
P. M. Anbarasan ◽  
V. Aroulmoji ◽  
...  

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