Chemical preparation of aluminum borate whiskers

2000-06-01
Gonenli, IE
Tas, AC
Aluminum borate (9Al(2)O(3). 2B(2)O(3)) whiskers were chemically synthesized in potassium sulphate flux by using the starting chemicals of aluminum sulphate and boric acid. The synthesis temperature of 1075 degrees C was found to be the optimum with respect to whisker morphology. A tentative X-ray diffraction (XRD) pattern was suggested for the whiskers produced after heating at 1150 degrees C. The product purity, phase composition, and whisker morphology were investigated by XRD, energy dispersive X-ray spectroscopy, and scanning electron microscopy, respectively. (C) 2000 International Centre for Diffraction Data. [S0885-7156(00)00601-1].
POWDER DIFFRACTION

Suggestions

Processing and characterization of porous titanium nickel shape memory alloys
Aydoğmuş, Tarık; Bor, Şakir; Ögel, Bilgehan; Department of Metallurgical and Materials Engineering (2010)
Porous TiNi alloys (Ti-50.4 at. %Ni and Ti-50.6 at. %Ni) with porosities in the range 21%-81% were prepared successfully applying a new powder metallurgy fabrication route in which magnesium was used as space holder resulting in either single austenite phase or a mixture of austenite and martensite phases dictated by the composition of the starting prealloyed powders but entirely free from secondary brittle intermetallics, oxides, nitrides and carbonitrides. Magnesium vapor do not only prevents secondary ph...
THERMAL CONDUCTİVİTY OF COMPACTED GRAPHİTE IRON
Kalkanlı, Ali(2013-12-31)
THERMAL CONDUCTİVİTY OF COMPACTED GRAPHİTE IRON
Experimental and numerical investigation of sheet metal hydroforming (flexforming) process
Hatipoğlu, Hasan Ali; Dursunkaya, Zafer; Department of Mechanical Engineering (2007)
Sheet metal hydroforming(flexforming) is a process generally used in the manufacturing of aerospace parts in which a rubber diaphragm forms the sheet on a die with the help pressurized fluid and by this aspect it is different from the conventional stamping process. Some defects occur in the parts that are manufactured by this method and they are not different from the general sheet metal forming defects. Wrinkling, tearing and springback are among those defects. Variety of parts makes difficult to encounter...
Synthesis of TiB2-reinforced iron-based composite coating
YILMAZ, SEVAL; Ozenbas, M.; YAZ, Mehmet (Elsevier BV, 2009-08-01)
Titanium diboride (TiB2) particulate reinforced Fe-based alloy composite coating was produced with ferrotitaniurn (FeTi), ferroboron (FeB), ferrotungsten (FeW), ferrochromium (FeCr), ferrovanadium (FeV) and ferromolybdenum (FeMo) powders by using gas tungsten arc welding (GTAW) process. The effects of GTAW processing on the microstructure of AISI-4340 alloy coating with ferro-alloy powders were investigated experimentally. Abrasive wear tests were performed on the coated surface of samples to examine the in...
Electrochemical formation of Al-Sc alloy in molten salt
Polat, Çağlar; Karakaya, İshak; Department of Metallurgical and Materials Engineering (2019)
Al-Sc alloys have better mechanical properties in comparison to commercial aluminum alloys. The aim was to produce Al-Sc alloys containing at least 2wt % scandium by electrochemical reduction of the byproducts such as ScF3 or the alternative compounds obtained from hydrometallurgical processing of low grade lateritic nickel in this thesis. Electrochemical production of Al-Sc alloy in pure molten CaCl2 and CaCl2-NaCl mixtures was studied for this purpose. The graphite-liquid aluminum-CaCl2 or CaCl2-NaCl inte...
Citation Formats
I. Gonenli and A. Tas, “Chemical preparation of aluminum borate whiskers,” POWDER DIFFRACTION, pp. 104–107, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65168.