Results 171 to 180 of about 1,058,325 (201)

Kinetics of the crystallization of amorphous TiNi and TiNiSi alloys

Materials Science and Engineering: A, 1994
Abstract Three binary TiNi alloys and three ternary TiNiSi alloys were rapidly quenched by the splat-cooling method and found to be completely amorphous. Their crystallization behaviour was studied by dynamic differential scanning calorimetry and by isothermal heat treatment followed by X-ray diffraction and transmission electron microscopy.
C. Seeger, P.L. Ryder
openaire   +1 more source

Structure and properties of Ti–Ni–Zr and Ti–Ni–Hf melt-spun ribbons

Materials Science and Engineering: A, 1999
Abstract Rapidly solidified ribbons of Ti–Ni–Zr and Ti–Ni–Hf shape memory alloys for high-temperature applications have been produced using a planar flow casting technique. Calorimetric and mechanical measurements, as well as transmission electron microscopy (TEM) observations have been performed.
E Cesari, P Ochin, R Portier, V Kolomytsev, Yu Koval, A Pasko, V Soolshenko   +6 more
openaire   +2 more sources

Characterization and reliability of Ti/Ni/Au, Ti/Ni/Ag and Ti/Ni back‐side metallizations in the die‐bonding of power electronic devices

Surface and Interface Analysis, 1994
Abstract The surface compositions of three different back‐side metals: Ti/Ni/Au 0.1/0.4/0.1 μm, Ti/Ni/Ag 0.1/0.4/0.1 and 0.1/0.4/2 μm and Ti/Ni 0.1/04 μm after thermal treatment at 180°C in air were investigated by means of XPS technique.
SCANDURRA, A, PORTO, A, MAMELI, L, VISCUSO, O, DELBO, V, PIGNATARO, S   +5 more
openaire   +1 more source

Structure of a Ti-Ni alloy produced by annealing of a multilayer Ti/Ni microcomposite

Russian Metallurgy (Metally), 2011
A multilayer microcomposite that consists of alternating nickel and titanium microlayers and corresponds to a near-equiatomic Ti-Ni alloy composition in the volume proportion is studied. The Ti/Ni composite is produced by vacuum rolling of a multilayer stack and subjected to heat treatment in the temperature range from 500 to 1000°C.
V. P. Korzhov, M. I. Karpov
openaire   +1 more source

Temperature dependence of the mixing enthalpy of liquid Ti–Ni and Fe–Ti–Ni alloys

Journal of Non-Crystalline Solids, 1999
Abstract Using electromagnetic levitation alloying calorimetry, the concentration and temperature dependence of the mixing enthalpy of liquid Ti–Ni and Fe–Ti–Ni alloys has been determined. For the Ti–Ni alloys, the measurements have been carried out at 1800 and 1980 K.
U. Thiedemann, M. Rösner-Kuhn, K. Drewes, G. Kuppermann, M.G. Frohberg   +4 more
openaire   +1 more source

A reassessment of the TiNi system

Calphad, 1993
Abstract The Ti-Ni system has been reevaluated. A subregular solution model is used for the liquid and regular ones for the terminal solid solutions ((α Ti), (β Ti),(Ni)). The compounds, Ti 2 Ni and TiNi 3 , are treated as line compounds, while TiNi is described by a three-sublattice model.
Liang Haiyan, Jin Zhanpeng
openaire   +1 more source

Cyclic stress-strain characteristics of TiNi and TiNiCu shape memory alloys

Materials Science and Engineering: A, 1995
The authors have examined the responses of three types of TiNi and three types of TiNiCu shape memory alloys in a pseudoelastic state to mechanical cycling in hard cycles with a constant emax and in soft cycles with a constant σmax. It was found that the transformation stress of the B2 parent phase into martensite and the hysteresis (or the amount ...
B. Strnadel, S. Ohashi, H. Ohtsuka, T. Ishihara, S. Miyazaki   +4 more
openaire   +1 more source

Electrochemical Dechlorination of 2-Chlorophenol on Ti-Ni, Ti-Pd and Ti-Ni-Pd Electrodes

ECS Meeting Abstracts, 2014
Chlorophenols are involved in the manufacture of different compounds as antiseptics, herbicides among others. Unfortunately, the presence of chlorophenols in wastewater of these industries has been detected. Chlorophenols have been listed as priority pollutants by The United State Envionmental Protection Agency (USEPA).
Miguel Arellano, Anne Claire Texier, Ignacio González   +2 more
openaire   +1 more source

On the four-phase reactions in the Ti–Ni–Al system

Intermetallics, 2009
Two four-phase reactions of transition type in the Ti-Ni-Al system were studied on several alloys, which were annealed at carefully set temperatures and quenched. The phase constitution was established by XRD and EPMA analyses. Due to sluggish reaction kinetics, the transition temperatures were defined by annealing and quenching techniques as no DTA ...
ULLAH KHAN A, YAN X, ROGL P, SACCONE, ADRIANA   +3 more
openaire   +3 more sources

Stability of the B2-Type Structure of Ti-Ni-Fe and Ti-Ni-Co Shape Memory Alloys

Materials Science Forum, 2006
Change in the R-phase transformation behavior with the increase of Fe/Co content in Ti-(50-x)Ni-xFe and Ti-(50-x)Ni-xCo alloys has been investigated through thermal property measurements and microscope observations in order to clarify the relation among the stability of the B2-type structure, premartensitic phenomena, and the R-phase transformation. It
Mi Seon Choi, Jumpei Ogawa, Takashi Fukuda, Tomoyuki Kakeshita   +3 more
openaire   +1 more source