Investigations on the thermal stability of fatigue dislocation structures in a single-slip-oriented copper single crystal

AbstractThe thermal stability of Co silicide on single crystal and polycrystalline Si has been investigated. Co films were evaporated onto (100) Si and undoped polycrystalline Si and annealed in vacuum. Resulting silicide films were examined using Rutherford backscattering spectroscopy, scanning electron microscopy, electron—induced x—ray spectroscopy, and sheet resistivity measurements. We find that CoSi2 on single crystal (100) Si remains stable through 1000ºC. In contact with undoped polycrystalline Si, intermixing begins at temperatures as low as 650ºC for 30min annealing. The Co silicide and Si layers are intermixed after 750ºC 30min annealing, giving islands of Si surrounded by silicide material, with both components extending from the surface down to the underlying oxide layer. The behavior of CoSi2 contrasts with results reported for TiSi2 which agglomerates on single crystal Si around 900ºC but is stable on polycrystalline silicon as high as 800ºC. Resistivity measurements show that the Co silicide remained interconnected despite massive incursion by Si into the silicide layer.

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Electric-field poling effect on thermal stability of monoclinic phase in Pb(Mg1/3Nb2/3)0.74Ti0.26O3 single crystal

Journal of Crystal Growth ◽

10.1016/j.jcrysgro.2005.11.065 ◽

2006 ◽

Vol 287 (2) ◽

pp. 454-457 ◽

Cited By ~ 7

Author(s):

R.R. Chien ◽

V. Hugo Schmidt ◽

Chi-Shun Tu

Keyword(s):

Thermal Stability ◽

Electric Field ◽

Single Crystal ◽

Monoclinic Phase ◽

Electric Field Poling ◽

Thermal Stability Of

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Implant isolation of ZnO epitaxial layers

MRS Proceedings ◽

10.1557/proc-744-m3.5 ◽

2002 ◽

Vol 744 ◽

Author(s):

S. O. Kucheyev ◽

C. Jagadish ◽

J. S. Williams ◽

P. N. K. Deenapanray ◽

Mitsuaki Yano ◽

...

Keyword(s):

Thermal Stability ◽

Single Crystal ◽

Sheet Resistance ◽

Annealing Temperature ◽

Ion Beam ◽

Irradiation Temperature ◽

Minor Effect ◽

Electrical Isolation ◽

Atomic Displacements ◽

Thermal Stability Of

ABSTRACTThe formation of highly resistive films of single-crystal ZnO as a result of irradiation with MeV Li, O, and Si ions is demonstrated. Results show that the ion doses necessary for electrical isolation close-to-inversely depend on the number of ion-beam-generated atomic displacements. Results show that an increase in the dose of 2 MeV O ions (up to ∼ 2 orders of magnitude above the threshold isolation dose) and irradiation temperature (up to 350 °C) has a relatively minor effect on the thermal stability of electrical isolation, which is limited to temperatures of ∼ 300 — 400 °C. For the case of multiple-energy implantation with keV Cr, Fe, or Ni ions, the evolution of sheet resistance with annealing temperature is consistent with defect-induced isolation, with a relatively minor effect of Cr, Fe, or Ni impurities on the thermal stability of isolation. Based on these results, the mechanism for electrical isolation in ZnO by ion bombardment is discussed.

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Relationship between Slip Band Morphology and Lattice Rotation near Fracture Surface in a Single-Slip-Oriented Copper Single Crystal

The Proceedings of Conference of Kansai Branch ◽

10.1299/jsmekansai.2018.93.p011 ◽

2018 ◽

Vol 2018.93 (0) ◽

pp. P011

Author(s):

Shoto OKA ◽

Yoshihisa KANEKO ◽

Makoto UCHIDA

Keyword(s):

Fracture Surface ◽

Single Crystal ◽

Slip Band ◽

Copper Single Crystal ◽

Lattice Rotation ◽

Single Slip

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Growth and Stability of MgO/NiO Multilayered Films on Single Crystal NiO(100)

MRS Proceedings ◽

10.1557/proc-401-507 ◽

1995 ◽

Vol 401 ◽

Cited By ~ 3

Author(s):

S. Imaduddin ◽

R. J. Lad

Keyword(s):

Thermal Stability ◽

Chemical Composition ◽

Chemical Analysis ◽

Single Crystal ◽

Lattice Mismatch ◽

Composition Studies ◽

Single Crystal Substrate ◽

Multilayered Films ◽

Crystal Substrate ◽

Thermal Stability Of

AbstractThe less than 1% lattice mismatch between MgO and NiO makes them ideal candidates for investigating the growth and stability of multilayered oxide films. Ultra-thin multilayers composed of alternating films of MgO and NiO were deposited onto a stoichiometric NiO(100) single crystal substrate at 250°C by evaporating Mg and Ni in 5×10−7 Torr of O2, respectively. The structure of these multilayers was determined using LEED. Reactivity and chemical composition studies of the MgO/NiO interfaces were carried out using XPS and UPS. The MgO/NiO multilayers grow epitaxially on NiO(100), as evidenced by LEED. XPS and UPS analysis indicates attenuation of the NiO or MgO peaks during growth which is consistent with discrete layering. Chemical analysis also reveals negligible intermixing of the MgO and NiO layers during deposition. Results pertaining to the thermal stability of the multilayers show that UHV annealing above 750°C results in significant diffusion of MgO into the NiO(100) substrate.

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A Series of Enthalpy/Entropy-Driven Reversible Dissolution/Reorganization Equilibriums in the System of Cu(NO3)2–HL–GdX3–H2O (HL=5-methylpyrazine-2-carboxylic acid; X=Cl, Br, NO3, ClO4)

Australian Journal of Chemistry ◽

10.1071/ch13675 ◽

2014 ◽

Vol 67 (11) ◽

pp. 1679

Author(s):

Sheng Zhang ◽

Qi Yang ◽

Xiangyu Liu ◽

Gang Xie ◽

Qing Wei ◽

...

Keyword(s):

Thermal Stability ◽

Magnetic Property ◽

Structural Analysis ◽

Carboxylic Acid ◽

Single Crystal ◽

Coordination Polymers ◽

X Ray Diffraction ◽

X Ray ◽

2D Network ◽

Thermal Stability Of

Five coordination polymers, [Cu(L)2]n (1), {[Cu(L)(Cl)(H2O)]·H2O}2n (2), [KCu(L)(μ-Cl)2]n (3), [Cu(L)(Br)H2O]n (4), and {[Cu0.5(HL)(H2O)](NO3)·H2O}2n (5) (HL = 5-methylpyrazine-2-carboxylic acid) were obtained by reactions of a pyramidal CuII-containing ligand, {[Cu(L)2(H2O)]·3H2O}n (LCu), with Gd(ClO4)3·6H2O, GdCl3·6H2O, GdCl3·6H2O/KCl, GdBr3·6H2O, or Gd(NO3)3·6H2O in water. Structural analysis reveals that the structures of these compounds range from a 0D block to a 2D network with modification of the environment of the CuII ions compared with LCu. Interestingly, there occurred a series of reversible dissolution/reorganization equilibriums between the initial reactants and the final products 1–5, which were determined as enthalpy/entropy driven chemical equilibriums by single crystal X-ray diffraction and microcalorimetry. In addition, the thermal stability of 1–4 and the magnetic property of 2 are discussed.

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