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Online since: September 2013
Authors: Noorasikin Samat, Fatimah A’thiyah Sabaruddin
For the sample added with 1 wt % MAPP, its fracture surface exhibited the craze-like structure with vein-type features.
Indeed, this structure corresponds to the result for high tensile strength in this study.
Royal Society of Chemistry, Cambridge, England
Online since: October 2011
Authors: Mintar Fransiscus, Chun Tsun Chen, Le Anh Tuan Bui, Chao Lung Hwang
Very high water content due to extensive porous structure and high specific surface area of RHA [1, 3].
This is due to the much more porous structure and lower specific gravity of RHA particles compared to the cement; the grains of RHA are not as dense as those of cement.
The Chemistry and Technology of Cements made from Rice Husk Ash.
Online since: May 2011
Authors: Shu Hua Qi, Ying Huang, Yan Fei Wu, Fang Fang Niu, Yin Ling Zhang, Lei Niu, Yu Qing Li
Preparation and magnetic properties of Ce-doped strontium ferrite films Yuqing Lia, Ying Huangb, Shuhua Qic, Lei Niud, Fangfang Niue, Yinling Zhangf, Yanfei Wug Department of Applied Chemistry, Northwestern Polytechnical University Shaanxi, Xi’an 710072, China almdayu@163.com, byingh@nwpu.edu.cn, cqishuhua@nwpu.edu.cn, dniulei2006@126.com enff851021@yahoo.com.cn, fzhangyinling1987@hotmail.com, gwuyanfei1234@126.com Keywords: Strontium thin film, Magnetic property, Cerium, Electromagnetic property.
Phase structure and composition analysis The phase identification of the as-prepared Ce-doped strontium ferrite film is carried out with XRD patterns.
XRD patterns of SrCexFe12-xO19 nanocrystalline films crystallized at 900 OC for 2 h Fig. 2 the EDS spectrum of SrCexFe12-xO19 film a) x=0.2 b) x=0.4 c) x=0.6 d) x=0.8 Table 1 The EDS spectrum data of the samples doped by Ce at different ratios Samples Weight % Atom % Fe-(Ka) Sr-(La1) Ce-(La1) Fe-(Ka) Sr-(La1) Ce -(La1) SrFe12O19 92.3922 7.6078 - 95.0134 439866 - SrCe0.2Fe11.8O19 83.9542 10.3129 5.7328 90.4559 7.0823 2.4618 SrCe0.4Fe11.6O19 77.2632 13.3315 9.4052 86.3189 9.4931 4.1880 SrCe0.6Fe11.4O19 75.1075 12.0426 12.8500 85.4419 8.7318 5.8263 SrCe0.8Fe11.2O19 70.9200 12.6752 16.4048 82.9112 9.4449 7.6439 Structure and surface morphology The surface appearance of the SrCexFe12-xO19 films is characterized by FESEM in order to confirm whether the film size reached nanometer scale grade.
Online since: January 2014
Authors: A.C.F.M. Costa, R.H.G.A. Kiminami, Joelda Dantas, J.R.D. Santos, Adriano Santana Silva, R.B.L. Cunha
The initial composition of the solution for each synthesized product was calculated based on the total valence of the oxidizing and reducing reagents, based on the concepts of propellant and explosive chemistry [7].
(a) (b) Fig. 4 – Morphology of the FMnZn nanoferrite under: (a) 1000x, and (b) 5000x magnification The literature reports that gases are released during the combustion reaction and higher reaction temperatures favor the formation of systems with these structures [12].
Nanoferrites with a spinel type structure are promising materials for the esterification reaction of soybean oil to produce biodiesel.
Online since: April 2019
Authors: Sitthisuntorn Supothina, Sunisa Jindasuwan
Hydrophobic and Oleophilic Filter Paper for Oil/Water Separation Sunisa Jindasuwan1,a* and Sitthisuntorn Supothina2,b 1Department of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok, 10800, Thailand 2National Metal and Materials Technology Center, National Science and Technology Development Agency, 114 Thailand Science Park, Phahonyothin Rd., Klong Luang, Pathum Thani, 12120, Thailand asunisaj@gmail.com, bsitthis@mtec.or.th Keywords: Hydrophobic, Oleophilic, Filter paper, Oil/water separation Abstract.
Filter paper is widely used for liquid-solid separation due to its porous structure constructed by microfibers [2].
Tsujii, Super water- and oil-repellent surfaces resulting from fractal structure, J.
Online since: October 2010
Authors: Aliye Arabaci, Nuri Solak
Mass spectra of GDC powders dried at 110 °C in dry air. 3.2 XRD characterization X-ray diffraction patterns obtained for GDC powders calcined at 200, 250, 600,700 °C ( 1h) are shown in Fig.4 After calcination at 200 °C GDC powder was amorphous, but after at 250 °C due to the partial decomposition of GDC powders, it started to convert from amorphous to crystalline structure.
The XRD data showed that all GDC powders calcined at 600 °C had a single-phase fluorite structure.
Meng: Materials Chemistry and Physics , Vol. 78 (2003), p. 791 [4] Z.C.
Online since: January 2012
Authors: Suresh Telu, Vaduganathan Karthik, Rahul Mitra, Shyamal Kumar Pabi
SEM images of the W0.5Cr0.5 alloy confirm two phase structure (bright and dark regions in Fig. 2(b)), with very small pores of the order of 1 µm in between grains.
Smith, Structure and properties of engineering alloys, second ed., McGraw-Hill, New York, 1993, pp. 580-586
Schubert, Tungsten Properties, Chemistry, Technology of The Elements, Alloy and Chemical Compound, Kluwer Academic / Plenum Publishers, New York, 1998, pp. 28-42
Online since: July 2011
Authors: Feng Cao, Pei Song Tang, Sheng Liang Ni, Hai Feng Chen, He Sun, Jin Tian Yang
Visible-light Driven LaNiO3 Nanosized Photocatalysts Prepared by a Sol-gel Process Peisong Tanga, He Sunb, Feng Caoc, Jintian Yangd, Shengliang Nie and Haifeng Chenf Department of Chemistry, Huzhou Teachers College, Huzhou 313000, P.R.
All peaks can be indexed to the typical perovskite structure (JCPDS card #: 33-0711).
Ye: Photocatalytic degradation of MB on MIn2O4 (M = alkali earthmetal) under visible light: effects of crystal and electronic structure on the photocatalytic activity.
Online since: July 2012
Authors: Hong Jian Peng, Meng Long Li
Application of Nanometer Materials into Badminton Racquet Strings LI Menglong1, a, PENG Hongjian*2, b 1 Physical Education Institute, Hunan University of Science and Technology, China 2 School of Chemistry and Chemical Engineering, Central South University, China a sbssqdx@yahoo.com.cn, b phj108@163.com Keywords: Nanofiber, Racquet String, Badminton, Application Abstract.
Molecular spinneret method: The molecular spinneret is composed of the films of cylindrical organic molecule structure which is consisted of the disk-shaped substance.
Eckes: Newly developed novolak-based resist materials for ion projection lithography (IPL) with structure dimensions of 200-100 nanometers.
Online since: October 2014
Authors: Ji Soon Kim, Nguyen Thi Hoang Oanh, Hoang Viet Nguyen, Jin Chun Kim
A variety of advanced materials included nano-structured materials and ceramic materials powders with higher activity by mechanically ball milling can be synthesized [4-6].
The traditional sintering techniques have a strong limitation of not being able to retain the nano-structure due to the problem of grain growth.
Isbell: Ullmann's Encyclopedia of Industrial Chemistry - Copper Alloys, Wiley-VCH Verlag GmbH & Co.