Crystallization kinetics and thermal stability of the Zr60Al7.5Cu17.5Ni10Si4B1 amorphous alloy studied by isothermal differential scanning calorimetry and transmission electron microscopy

The aim of this work is to study the strengthening mechanism and thermal stability of spray formed H13 steel. The microstructure and hardness of spray formed H13 steels are investigated by electron microscopy, transmission electron microscopy and hardness measurementscanning. The calculated results demonstrate that tensile strength, impact energy and hardness values of sprayed-formed H13 steel are higher than that of as-cast H13 steel when the tempering temperature is 600 °C after quenched at 1050 °C. Compared with as-cast H13 steels, tempered spray-formed H13 steels possess supernal high-temperature temper resistant stability. The chemical composition of the carbides in spray-formed steels is V and Cr rich spherical carbides are hardly influenced by the tempering treatment.

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Reactions in Metal-Metalloid Multilayers

MRS Proceedings ◽

10.1557/proc-311-3 ◽

1993 ◽

Vol 311 ◽

Cited By ~ 3

Author(s):

Robert Sinclair ◽

Toyohiko J. Konno

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Differential Scanning Calorimetry ◽

Reactive Systems ◽

Nucleation And Growth ◽

In Situ Observation ◽

Scanning Calorimetry ◽

Compound Formation ◽

Transmission Electron

ABSTRACTWe have studied the reactions at metal-metalloid interfaces using high resolution transmission electron microscopy, including in situ observation, and differential scanning calorimetry. There is contrasting behavior depending on the affinity for interaction or segregation. For reactive systems, compound formation ultimately results, but this can be preceded by solidstate amorphization. For non-reactive systems, crystallization of the metalloid is often achieved with nucleation and growth mediated by the metal phase.

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Thermal Stability of Hole-Selective Tungsten Oxide: In Situ Transmission Electron Microscopy Study

Scientific Reports ◽

10.1038/s41598-018-31053-w ◽

2018 ◽

Vol 8 (1) ◽

Cited By ~ 5

Author(s):

Haider Ali ◽

Supriya Koul ◽

Geoffrey Gregory ◽

James Bullock ◽

Ali Javey ◽

...

Keyword(s):

Electron Microscopy ◽

Thermal Stability ◽

Transmission Electron Microscopy ◽

Tungsten Oxide ◽

Microscopy Study ◽

Electron Microscopy Study ◽

Transmission Electron Microscopy Study ◽

Transmission Electron ◽

Thermal Stability Of

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Thermal stability of laser-induced modified volumes in Si as studied by in situ and ex situ heating experiments

Microscopy ◽

10.1093/jmicro/dfy008 ◽

2018 ◽

Vol 67 (2) ◽

pp. 112-120

Author(s):

Hiroyasu Saka ◽

Hiroyuki Iwata ◽

Daisuke Kawaguchi

Keyword(s):

Electron Microscopy ◽

Thermal Stability ◽

Transmission Electron Microscopy ◽

Laser Beam ◽

Ex Situ ◽

Dislocation Theory ◽

Tail Region ◽

Transmission Electron ◽

Thermal Stability Of

Abstract Radiation of a permeable laser beam into Si induces considerable modification of structures. Thermal stability of the laser-induced modified volumes (LIMV’s) was studied comprehensively by means of in situ and ex situ heating experiments using transmission electron microscopy. The behavior in the tail region of a LIMV can be understood by dislocation theory, while that of a void formed at the very focus of a laser beam cannot be understood easily.

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Crystallization of Amorphous Si In Al/Si Multilayers

MRS Proceedings ◽

10.1557/proc-230-189 ◽

1991 ◽

Vol 230 ◽

Cited By ~ 5

Author(s):

Toyohiko J. Konno ◽

Robert Sinclair

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Differential Scanning Calorimetry ◽

Layered Structure ◽

Heat Of Reaction ◽

X Ray Diffraction ◽

Scanning Calorimetry ◽

X Ray ◽

Transmission Electron ◽

Amorphous Si

AbstractThe crystallization of amorphous Si in a Al/Si multilayer (with a modulation length of about 120Å) was investigated using transmission electron microscopy, differential scanning calorimetry and X-ray diffraction. Amorphous Si was found to crystallize at about 175 °C with the heat of reaction of 11±2(kJ/mol). Al grains grow prior to the nucleation of crystalline Si. The crystalline Si was found to nucleate within the grown Al layers. The incipient crystalline Si initially grows within the Al layer and then spreads through the amorphous Si and other Al layers. Because of extensive intermixing, the original layered structure is destroyed. The Al(111) texture is also enhanced.

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