Results 241 to 250 of about 55,406 (267)

Synthesis of Zincite by the Hydrothermal Method

1973
Zincite crystals may be grown in a variety of ways: from the gas phase, yielding acicular crystals [1], by the crystallization of zinc oxide from solution in PbF2 [2], which gives imperfect, lamellar crystals with (0001) and (0001) basic faces, and so on. The properties of crystals grown by these methods are technologically unsatisfactory.
I. P. Kuz’mina, A. N. Lobachev, N. S. Triodina   +2 more
openaire   +1 more source

Preparation of Titanate Nanotubes by Hydrothermal Method

Materials Science Forum, 2009
Titanate nanotubes have been directly prepared by hydrothermally treating P25 powders in NaOH aqueous solution. Effect of calcination temperature on crystal phase, morphologies and specific surface area of the as-synthesized nanotubes has been investigated in detail. The Na2Ti3O7 tubular structure could be kept well even after calcination at 600 °C and
Dan Ni Yu, Wen Xiu Liu, Jing Ma, Xiao Guang Qu, Wen Bin Cao, Zhong Ying Zhang, Jing Hong Mao   +6 more
openaire   +1 more source

Synthesis of gadolinium silicate by hydrothermal method

AIP Conference Proceedings, 2013
A simple method based on hydrothermal synthesis of materials to prepare gadolinium silicate has been prescribed. It is found that molar ratio of Gd(NO3)3: TEOS plays a crucial role in the formation of Gd2SiO5. The effect of calcinations, concentration of the precipitating agent and dopant atoms on composition and morphology of the synthesized materials
Seema Shinde, M. Ghosh, Shashwati Sen, S. G. Singh, S. C. Gadkari, S. K. Gupta   +5 more
openaire   +1 more source

La0.5Sr0.5TiO3 nanopowders prepared by the hydrothermal method

Materials Research Bulletin, 2012
Abstract La 0.5 Sr 0.5 TiO 3 nanopowders were prepared by the hydrothermal method. The influence of processing parameters, including KOH concentration, reaction temperature and reaction time on the obtained products were studied. The structure and morphology of the obtained products were characterized by X-ray diffraction (XRD), scanning electron ...
Thanin Putjuso, Santi Maensiri, Sitchai Hunpratub, Ekaphan Swatsitang   +3 more
openaire   +1 more source

Obtaining aluminosilicate refractories by the hydrothermal method

Refractories, 1967
On the basis of aluminosilicate bond made from heat-processed hydrated alumina and quartz sand in the molecular ratio of Al2O3: SiO2=3∩2, in conditions of autoclave processing at 800–1000 kg/cm2 in a period of 8–12 h, it is possible to obtain unfired aluminosilicate refractories with quite high physico-chemical factors.
E. I. Ved', Ya. G. Belik, Z. S. Litvinova   +2 more
openaire   +1 more source

Synthesis of Zirconium Tungstate by Hydrothermal Method

Advanced Materials Research, 2011
Negative thermal expansion material ZrW2O8 was synthesized by hydrothermal method. The prepared ZrW2O8 and the precursor were characterized by x-ray diffractometer, thermo-gravimetric/differential thermal analyzer, FT-IR spectrometer and scanning electron microscope.
Li Yun Zheng, Zhi Wei Yang
openaire   +1 more source

Synthesis of ZnO nanoparticles by hydrothermal method

SPIE Proceedings, 2007
Stable, OH free zinc oxide (ZnO) nanoparticles were synthesized by hydrothermal method by varying the growth temperature and concentration of the precursors. The formation of ZnO nanoparticles were confirmed by x-ray diffraction (XRD), transmission electron microscopy (TEM) and selected area electron diffraction (SAED) studies.
P. M. Aneesh, K. A. Vanaja, M. K. Jayaraj   +2 more
openaire   +1 more source

TDEM Method for Hydrothermal Water Prospection

70th EAGE Conference and Exhibition incorporating SPE EUROPEC 2008, 2008
TDEM prospection allowed to reconstruct tectonic setting of a thermal basin, in Viterbo (Central Italy). A productive well was located at the intersection of two faults evidenced by geophysical data, reaching a depth of 127 m. and providing thermal water (58°C) with high productivity (spontaneous discharge 10 L/Sec).
A. Menghini, G. Pagano, S. Floris, E. Bernini   +3 more
openaire   +1 more source

DEPOLYMERIZATION OF LIGNIN BY HYDROTHERMAL METHOD

2014
Two modified forms of lignin were obtained by the hydrothermal depolymerization of lignin derived from a lignocellulosic source (Miscanthus sinensis-Andersson). One of them is soluble in many organic solvents (organosolv) and has a softening point of 48 to 98 °C, and the other one is practically insoluble in organic solvents and is unsoftenable even at
openaire   +1 more source

Mg(OH)2 Nanorods Synthesized by A Facile Hydrothermal Method in the Presence of CTAB

Nano-Micro Letters, 2011
Hassouna Dhaouadi, Fathi Touati, Dhaouadi Hassouna   +2 more
exaly