contact reaction of metallic titanium with oxide refractory materialsdoi:10.1007/BF01282063V. G. GopienkoKluwer Academic Publishers-Plenum PublishersRefractoriesContact reaction of metallic titanium with oxide refractory materials[J] . V. G. Gopienko.Refractories . 1971 (5)...
(a) the addition of metallic aluminum to a copper(II) nitrate solution results in the precipitation of copper metal and the formation of aluminum ions in solution.(b) metallic copper is added to a dilute solution of nitric acid,gaseous nitrogen(II) oxide is evolved and the solution becames...
Fluxes (corrosive zinc chloride, non-corrosive organic resins) facilitate essential ‘wetting’ of the metal to be joined by dissolving thin oxide films and preventing re-oxidation. In electronic applications, minute solder preforms have been used to solve the problems of excess solder and flux. ...
This is important because binary and ternary oxide nanostructures are of major interest to the researches working in several fields such as separations, energy conversion, and heterogeneous catalysis. For instance, various studies show that the activity and/or selectivity of catalysts can be improved ...
Similarly to Fe spectra, both of Ni and Cr peak can be deconvoluted into two peaks involving chemical state zero-valent metal and metal oxide, shown in Fig. 4a–c. Compare to the ESS sample, all the peaks of metal elements for the Cr–FeNi LDH @ ESS sample move towards higher binding...
prepared nano-crystals of CoSe embedded into nanowires of carbon (CoSe22@CNWs) and utilized them as the catalyst for the purpose of HER15. These scholars reported the exceptional durability and the superb HER activity of CoSe@CNWs. Through direct carbonization of graphene oxide (GO) and Ni-...
aAn inter-metallic bond must be formed at the interface of solder and the base metal surfaces. The bonding of non metallic substrates like glasses is based on the chemical reaction of CERASOLZER by creating a specific oxide layer 必须形成金属间化合的债券在焊剂和碱金属表面接口。 非金属基体接合...
Then---thechemicalreactionwhichcrosslinktherubberbyperoxide,diazocompound,Se,Teandothermetallicoxideisalsocalledsulfuration.Morethanthat,broadsenseofsulfurationisthegeneraldesignationofrubblecrosslinkingcausedbychemicalorphysicalfactor.①thesulfurationofrubberThe②thecrosslinkingofpolyolefinsThemainchainofpolythene,ethyl...
Additionally, one must take into account the significantly more expensive starting materials, as compared to methods using solely calcium and silicon oxide as sources. Since the addition of these composite materials to cement results in a more complex reaction mechanism, their benefit for fundamental ...
It was shown in 1972 that upon illumination of reduced titanium oxide (TiO2), which served as the anode in basic electrolyte solution, oxygen evolution was detectable at the anode, and hydrogen evolved at a metal (platinum) cathode. This reaction requires an energy of 1.23 V/electron (a two...