Lattice Strain and Magnetic Property Evolution of La0.5Sr0.5Mn1−x Co x O3 Synthesized by Solid-State Reaction at Low Temperatures

2015 ◽  
Vol 29 (1) ◽  
pp. 115-122 ◽  
Author(s):  
Wen Chen ◽  
Yuye Chen ◽  
Wenwei Wu ◽  
Tangwei Li ◽  
Cuiyan Zhang ◽  
...  
Keyword(s):  
Magnetic Property ◽  
Solid State ◽  
Solid State Reaction ◽  
Low Temperatures ◽  
Lattice Strain

Study of the reaction mechanism between electroless Ni–P and Sn and its effect on the crystallization of Ni–P

2003 ◽  
Vol 18 (1) ◽  
pp. 4-7 ◽  
Author(s):  
Y. C. Sohn ◽  
Jin Yu ◽  
S. K. Kang ◽  
W. K. Choi ◽  
D. Y. Shih
Keyword(s):  
Reaction Mechanism ◽  
Solid State ◽  
Solid State Reaction ◽  
Crystallization Temperature ◽  
Low Temperatures ◽  
Transformation Temperature ◽  
The Self ◽  
Heat Of Reaction ◽  
Solder Reaction ◽  
Electroless Ni

The reaction mechanism between electroless Ni–P and Sn was investigated to understand the effects of Sn on solder reaction-assisted crystallization at low temperatures as well as self-crystallization of Ni–P at high temperatures. Ni3Sn4 starts to form in a solid-state reaction well before Sn melts. Heat of reaction for Ni3Sn4 was measured during the Ni–P and Sn reaction (241.2 J/g). It was found that the solder reaction not only promotes crystallization at low temperatures by forming Ni3P in the P-rich layer but also facilitates self-crystallization of Ni–P by reducing the transformation temperature and heat of crystallization. The presence of Sn reduces the self-crystallization temperature of Ni–P by about 10 °C. The heat of crystallization also decreases with an increased Sn thickness.

THEORETICAL CALCULATION OF ATOMIC STRAIN ON MECHANICAL ALLOYED METASTABLE INTERMETALLIC

2009 ◽  
Vol 16 (01) ◽  
pp. 157-160
Author(s):  
L. PANG ◽  
J. XU ◽  
J. ZHANG
Keyword(s):  
Solid Solution ◽  
Solid State ◽  
Binary System ◽  
Mechanical Alloying ◽  
Theoretical Calculation ◽  
Solid State Reaction ◽  
Lattice Strain ◽  
Electron Theory ◽  
Strain Behavior ◽  
Good Coincidence

Mechanical alloying (MA) has been utilized to synthesize many equilibrium and/or nonequilibrium phases. During the MA process, alloys are formed by the solid-state reaction. Solid solution has been obtained by MA, strain occurs due to the dissolution one component in the binary system. An understanding of the strain in mechanical alloyed Ti – Al , Fe – Al , Ni – Al from the electronic level has remained elusive. In this communication, atomic strain behavior of Ti – Al , Fe – Al , Ni – Al systems is analyzed on the basis of the TFDC (abbreviation of the name of Thomas, Fermi, Dirac, and Cheng) electron theory. Lattice strain of Ti , Fe , Ni , and Al are compared with available experimental results. A very good coincidence was found.

Solid-state reaction of electroplated thin film Au/Sn couple at low temperatures

2015 ◽  
Vol 619 ◽  
pp. 325-331 ◽  
Author(s):  
H. Xu ◽  
V. Vuorinen ◽  
H. Dong ◽  
M. Paulasto-Kröckel
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Solid State Reaction ◽  
Low Temperatures

scholarly journals Evolution of Interfacial Features of MnO-SiO2 Type Inclusions/Steel Matrix during Isothermal Heating at Low Temperatures

2019 ◽  
Vol 38 (2019) ◽  
pp. 347-353 ◽  
Author(s):  
Xueliang Zhang ◽  
Shufeng Yang ◽  
Jingshe Li ◽  
Chengsong Liu ◽  
Wei-xing Hao
Keyword(s):  
Heat Treatment ◽  
Solid State ◽  
Solid State Reaction ◽  
Low Temperatures ◽  
Heating Temperature ◽  
Heating Time ◽  
Steel Matrix ◽  
Isothermal Heating ◽  
Precipitation Zone ◽  
Wagner Equation

AbstractTo clarify the evolution of interfacial features between MnO-SiO2 type inclusions and Si-Mn killed steel during isothermal heating at low temperatures, two diffusion couple samples were investigated under heat treatment at 1173 K and 1273 K, respectively. The experimental results show that the diffusion of oxygen from the oxide to the alloy is the restrictive link of the solid-state reaction between MnO-SiO2-FeO oxide and steel matrix at low heating temperatures. With increasing heating time or temperature, more FeO in the oxide decomposed, and the resulting oxygen diffused into the alloy and reacted with Mn and Si elements. The critical heating temperature at which the interfacial reaction can occur was determined to be 1173 K. And a dynamic model that predicts the change in the width of the particles precipitation zone at low temperatures was also established based on Wagner equation.

Synthesis of perovskite-type manganites Yb1−xDyxMnO3 (0.1 ≤ x ≤ 0.5) via solid-state reaction and high-pressure flux methods followed by structural characterization and magnetic property studies

2015 ◽  
Vol 39 (4) ◽  
pp. 2596-2601 ◽  
Author(s):  
Yingnan Zhang ◽  
Fuyang Liu ◽  
Tong Zheng ◽  
Ziqing Zhang ◽  
Wei Liu ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnetic Property ◽  
Solid State ◽  
Single Crystal ◽  
Structural Characterization ◽  
Solid State Reaction ◽  
Structural Difference ◽  
Paramagnetic Property ◽  
Perovskite Type

h-Yb1−xDyxMnO3 (0.1 ≤ x ≤ 0.5) and single crystal o-Yb0.5Dy0.5MnO3 were firstly synthesized, and o-Yb0.5Dy0.5MnO3 has the paramagnetic property due to slight structural difference.

Magnetic and Electrical Property in Mg2+ Deficient La1.4Sr1.6Mn2O7 Perovskite

2014 ◽  
Vol 936 ◽  
pp. 571-576
Author(s):  
Yun Zong ◽  
Xu Zhao ◽  
Wei Chen
Keyword(s):  
Magnetic Property ◽  
Solid State ◽  
Electrical Property ◽  
Spin Glass ◽  
Solid State Reaction ◽  
Transformation Temperature ◽  
Solid State Reaction Method ◽  
Spin Glass State ◽  
Reaction Method ◽  
Glass State

The nominal compositions of La1.4Sr1.6-xMgxMn2O7(x=0, 0.1, 0.2, 0.3, 0.4) have been synthesized using solid-state reaction method. The XRD analyses show that the x=0 compound is pure I4/mmm tetragonal bilayered perovskites phase, while they are mixture of an orthorhombic ABO3-type perovskite and tetragonal bilayered perovskites for x=0.1, 0.2 and 0.3). When x is 0.4, the compound is pure orthorhombic ABO3-type perovskite. For lightly doped samples (x=0.1 and 0.2), the Curie and Nair temperature decreases with the increasing Mg2+doping, while the metal-insulation transformation temperature is 90K and 140K, respectively. For heavy doped samples (x=0.3 and 0.4), the magnetic property shows spin-glass state, and the resistance increases nearly 4 order of magnitudes.

NiSi Nanowires and Nanobridges Formed by Metal-Induced Growth

2005 ◽  
Vol 901 ◽  
Author(s):  
Joondong Kim ◽  
Dongho Lee ◽  
Wayne A Anderson
Keyword(s):  
Solid State ◽  
Ohmic Contact ◽  
Solid State Reaction ◽  
Building Block ◽  
Low Temperatures ◽  
Optical Lithography ◽  
The Self ◽  
Metal Induced Growth ◽  
Lift Off ◽  
Nanoscale Building Block

AbstractNickel monosilicide (NiSi) nanowires (NWs) were fabricated by metal-induced growth at 575 °C. The solid-state reaction of Ni and Si provides linear grown NWs. The parallel grown NW forms a nanobridge (NB) across a trench, patterned with a simple optical lithography and metal lift-off method. The Ni pads gave a good Ohmic contact without affecting the I-V transport characteristics through a NB. The metallic NB, 2.73 µm in length and 50 nm in diameter, gave a low resistance of 148 . The self-assembled nanobridge can be applied to form nanocontacts at relatively low temperatures. The MIG NB is a promising 1 dimensional nanoscale building block to satisfy the need of ‘self and direct’ assembled ‘bottom-up’ fabrication concepts.

Magnetic Property of Ni-Doped Bi5Ti3FeO15 Multiferroic Ceramics

2014 ◽  
Vol 1082 ◽  
pp. 57-60
Author(s):  
Jian Qing Li ◽  
Ling Feng Yu ◽  
Zi Peng Chen ◽  
Zheng Zheng Ma
Keyword(s):  
Magnetic Properties ◽  
Magnetic Property ◽  
Solid State ◽  
Solid State Reaction ◽  
Room Temperature ◽  
X Ray Diffraction ◽  
Conventional Solid State Reaction ◽  
X Ray ◽  
Diffraction Peaks ◽  
Diffraction Patterns

Multiferroic ceramics of Bi5Ti3Fe1-xNixO15(x=0.1,0.2,0.5,0.7) are synthesized b the conventional solid state reaction, and their microstructure, magnetic properties are investigated. X-ray diffraction patterns show that a four-layer Aurivillus phase is formed in each sample and the diffraction peaks change obviously with the temperature increasing. The Ni ion modification induces remarkable ferromagnetism (FM) at room temperature. And the x=0.2 sample has the greatest saturation magnetization Ms~0.26552 emμ/g, and the coercive field Hc~ 0.65478 kOe

The wustite-spinel interface

1987 ◽  
Vol 45 ◽  
pp. 268-269
Author(s):  
S.R. Summerfelt ◽  
C.B. Carter
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Strain Energy ◽  
Matrix Material ◽  
Lattice Misfit ◽  
Solid State Reactions ◽  
Oxygen Sublattice ◽  
Large Particles ◽  
Small Lattice ◽  
Coherent Interfaces

The wustite-spinel interface can be viewed as a model interface because the wustite and spinel can share a common f.c.c. oxygen sublattice such that only the cations distribution changes on crossing the interface. In this study, the interface has been formed by a solid state reaction involving either external or internal oxidation. In systems with very small lattice misfit, very large particles (>lμm) with coherent interfaces have been observed. Previously, the wustite-spinel interface had been observed to facet on {111} planes for MgFe2C4 and along {100} planes for MgAl2C4 and MgCr2O4, the spinel then grows preferentially in the <001> direction. Reasons for these experimental observations have been discussed by Henriksen and Kingery by considering the strain energy. The point-defect chemistry of such solid state reactions has been examined by Schmalzried. Although MgO has been the principal matrix material examined, others such as NiO have also been studied.

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