Synthesis of nanostructured titanium based intermetallics by mechanical alloying

... Intermetallic compound: titanium aluminides 25 1.6.1 Ti3Al based alloys prepared by MA 27 iii 1.6.2 γ-TiAl based alloys prepared by mechanical alloying 30 1.6.3 TiAl3 prepared by mechanical alloying Experimental ... Occurrence of indentation crack with change in indentation load Table 7.2 Comparison of mechanical properties of different types of Al3Ti xxi Chapter...

Ngày tải lên: 17/09/2015, 17:19

... This novel sonochemical synthesis of metal oxides could be explored as an alternate way to make metal oxide based Bhasmas Though the palladium based metal oxides may be used directly as dental materials, ... either as pure metallic palladium Pd (0) or as palladium salts such as palladium acetate and palladium nitrate Ethanol was used as the reducing agent to synthesise...

Ngày tải lên: 11/06/2014, 12:29

... of SnxNy NWs by direct nitridation of Sn with NH3 is feasible by changing from Ar to NH3 since Sn, like In, has a low melting point [28] and InN NWs have been obtained by direct nitridation of ... the direct nitridation of Sn with NH3 was promoted by the addition of NH4Cl into the Sn at a ratio of 1:1 by weight The reaction of NH4Cl with Sn was carried out under a flo...

Ngày tải lên: 21/06/2014, 20:20

... Conclusions A temperature window of SWCNTs growth by catalytic chemical vapor deposition of CH4 over Mo-Fe/MgO catalyst has been studied The results suggest that when the temperature is lower than 750 ... mg catalyst was put into the quartz tube The temperature was raised to the setting value in Ar atmosphere at a flow rate of 200 mL/min before CH4 w...

Ngày tải lên: 22/06/2014, 00:20

... product of a of C-a protein co-migrating with the sl B-a protein For the B protein, the contribution of the a is evident in -casein so the electrophoregram and has been considered in estimating the ... between the proteins produced by the alleles of the respective a,,-Cn and heterozygotes and the -Lg expression of the alleles in homozy...

Ngày tải lên: 14/08/2014, 20:20

... ABSTRACT IDENTIFICATION, DESIGN AND SYNTHESIS OF OXYGENATED HYDROCARBON-BASED CO2-SOLUBLE POLYMERS FOR CHEMICAL AND PETROLEUM ENGINEERING APPLICATIONS Lei Hong, Ph.D University of Pittsburgh, 2006 ... defended on March 29, 2006 and approved by Dr Eric J Beckman, Professor, Chemical and Petroleum Engineering Department Dr J Karl Johnson, Professor, Chem...

Ngày tải lên: 13/11/2014, 10:49

... confirming the adenylylation of these compounds and the absence of synthesis of poly(A) by the E coli poly(A) polymerase, we did not observed adenylylation of guanosine, GDP or Gp4G by the yeast enzyme ... independent synthesis of poly(A) In order to understand why dinucleoside polyphosphates activated the primer independent synthesis of poly...

Ngày tải lên: 21/02/2014, 01:21

... bacteria, such as E coli, the System I cytochrome c biogenesis machinery, consisting of some disulfide bond formation (Dsb) and cytochrome c maturation (Ccm) proteins, is responsible for the biogenesis ... expression in E coli strains with reference to PH c5 52, which has been characterized as a System I -dependent cytochrome c Biogenesis of cytochrom...

Ngày tải lên: 06/03/2014, 00:20

... temperature to adjust the pore diameter and remove the barrier layer at the bottom of nanoholes 2.2 Synthesis of SiC nanowires The preparation apparatus for synthesis of SiC nanowires is a conventional ... image of SiC nanowires synthesized using the AAO template by thermal evaporation It reveals that large quantities of randomly distributed wire-like p...

Ngày tải lên: 16/03/2014, 15:21

... Conclusion Silicon-based nanostructures with different colors, morphologies, and microstructures were formed over a wide temperature range from 890 to 1320 °C by thermal evaporation of SiO powders ... decomposition of SiO described by 2SiO ) Si + SiO2 After the Si nucleus is formed, it will grow into a larger particle by continuously adsorbing SiO from the vapor ph...

Ngày tải lên: 16/03/2014, 15:30

... synthesis enhanced by T7 RNA polymerase Prior to the preparation of 15N-labelled samples of hCypA and analysis by NMR spectroscopy, the performance of the cell-free expression system was explored ... 2004 Cell-free synthesis of 15 N-labelled proteins (Eur J Biochem 271) 4087 Optimization of other conditions for in vitro protein synthesis Fig Cell-free...

Ngày tải lên: 16/03/2014, 18:20

... mesolamellar precursors resulted in WO3 nanorods in large quantity [26] Recently, the synthesis of WO3 nanorods at a large scale [27] has been described by the oxidation of W(CO)6 with an amine ... in gram quantities by a simple hydrothermal method WO3 nanorods were reduced with H2 S to obtain a very high yield of multiwalled WS2 nanotubes Experimenta...

Ngày tải lên: 19/03/2014, 16:48

... fraction of magnetite In this paper, we report a facile one-pot synthesis of PANI /magnetite nanorod composites through DBSA micelleassisted synthesis by in situ self- assembly method The presence of ... PANI /magnetite nanocomposite materials could be readily obtained by such a self- assembly process in the presence of PANI nanorods Moreover, it is worth...

Ngày tải lên: 20/03/2014, 13:04

... were used to fabricate WO3 sensing electrodes for high temperature potentiometric NOx sensing WO3 films can be deposited selectively on Pt electrodes only or on both Pt electrodes and UV-ozone treated ... peroxytungstate-coated Pt electrodes heated in air at 700 ◦ C for h (Sensor C); (e) cross-section of the WO3 /Pt/YSZ interface (Sensor C); (f) higher magnification microgra...

Ngày tải lên: 20/03/2014, 13:07

... in this work (A) Consecutive additions of GlcNAc and Gal to Galb1-4GlcNAcb-pNP by b3GnT and b4GalT (B) Consecutive additions of GlcNAc and Gal to Galb1-4Glcb-pNP by b3GnT and b-D-galactosidase ... of that of The same tendency was seen in a comparison of and This was also the case for B fragilis endo-b-galactosidase as shown in Table Transglycosylation reaction o...

Ngày tải lên: 31/03/2014, 07:20