Microstructure evolution of hydration products and strength change of hydratable alumina‐bonded castables below 1250°C

2020 ◽  
Vol 104 (3) ◽  
pp. 1448-1454
Author(s):  
Ju Zhang ◽  
Na Li ◽  
Wenying Zhou ◽  
Xuejun Xiong ◽  
Song Gao ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Hydration Products ◽  
Strength Change ◽  
Hydratable Alumina

Effect of Temperature on Hydration Performance of Portland Cement

2013 ◽  
Vol 328 ◽  
pp. 863-866
Author(s):  
Jun Liu ◽  
Yun Zhang ◽  
Run Qing Liu ◽  
Fang Zhi Lin ◽  
Zi Yan Huang
Keyword(s):  
Portland Cement ◽  
Mechanical Strength ◽  
Curing Temperature ◽  
Effect Of Temperature ◽  
Temperature Decrease ◽  
Hydration Products ◽  
Hydration Time ◽  
Strength Change ◽  
Different Temperatures ◽  
Change Trend

The mechanical strength change trend of Portland cement at different temperatures (+5°C, 0°C,-5°C,-10°C) was researched, and hydration performance and slurry structure of Portland cement was studied. Results showed that hydration process of Portland cement didn't vary with the lowering of curing temperature, but each stage of hydration time extended. The temperature decrease prolonged formation time of hydration products, making the early microstructure to loose, produces more pores, and causes the early mechanical strength of Portland cement to decrease.

Microstructure Evolution Induced by Ultraviolet Light Irradiation in Ti-Si Codoped Diamond-like Carbon films

2014 ◽  
Vol 29 (9) ◽  
pp. 941
Author(s):  
JIANG Jin-Long ◽  
WANG Qiong ◽  
HUANG Hao ◽  
ZHANG Xia ◽  
WANG Yu-Bao ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Microstructure Evolution ◽  
Carbon Films ◽  
Light Irradiation ◽  
Diamond Like Carbon ◽  
Ultraviolet Light Irradiation

Surface Microstructure Evolution Upon Silicidation of Ni(Pt) and the Different Responses to Metal Etch

2013 ◽  
Author(s):  
Wentao Qin ◽  
Dorai Iyer ◽  
Jim Morgan ◽  
Carroll Casteel ◽  
Robert Watkins ◽  
...  
Keyword(s):  
Thin Film ◽  
Oxide Film ◽  
Microstructure Evolution ◽  
Depth Profiling ◽  
Surface Microstructure ◽  
The Difference ◽  
Surface Microstructures ◽  
Pt Films

Abstract Ni(5 at.%Pt ) films were silicided at a temperature below 400 °C and at 550 °C. The two silicidation temperatures had produced different responses to the subsequent metal etch. Catastrophic removal of the silicide was seen with the low silicidation temperature, while the desired etch selectivity was achieved with the high silicidation temperature. The surface microstructures developed were characterized with TEM and Auger depth profiling. The data correlate with both silicidation temperatures and ultimately the difference in the response to the metal etch. With the high silicidation temperature, there existed a thin Si-oxide film that was close to the surface and embedded with particles which contain metals. This thin film is expected to contribute significantly to the desired etch selectivity. The formation of this layer is interpreted thermodynamically.

Abnormal Microstructure Evolution Behaviors of Annealed Ag-Co Alloy Film on Flexible Polyimide Substrates

2020 ◽  
Author(s):  
Yuanjiang Lv ◽  
Xin Xin Lian ◽  
Haoliang Sun ◽  
Xiaoxue Huang ◽  
Guang xin Wang
Keyword(s):  
Microstructure Evolution ◽  
Alloy Film

Deuterium and helium desorption behavior and microstructure evolution in beryllium during annealing

2021 ◽  
Vol 544 ◽  
pp. 152686
Author(s):  
Yutaka Sugimoto ◽  
Masaru Nakamichi ◽  
Jae-Hwan Kim ◽  
Hiroki Kurata ◽  
Mitsutaka Haruta ◽  
...  
Keyword(s):  
Microstructure Evolution
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