scholarly journals Comment on “Dynamic aspects of the liquid-liquid phase transformation in silicon” [J. Chem. Phys. 129, 104503 (2008)]

2009 ◽  
Vol 130 (24) ◽  
pp. 247102 ◽  
Author(s):  
S. N. Yannopoulos
Keyword(s):  
Phase Transformation ◽  
Liquid Phase ◽  
Chem Phys

scholarly journals Correction: Liquid-phase exfoliated SnS as a semiconductor coating filler to enhance corrosion protection performance

2020 ◽  
Vol 22 (21) ◽  
pp. 12321-12321
Author(s):  
Hongyu Tang ◽  
Zuopeng Qu ◽  
Lei Wang ◽  
Huaiyu Ye ◽  
Xuejun Fan ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Corrosion Protection ◽  
Chem Phys ◽  
Phys Chem Chem Phys

Correction for ‘Liquid-phase exfoliated SnS as a semiconductor coating filler to enhance corrosion protection performance’ by Hongyu Tang et al., Phys. Chem. Chem. Phys., 2019, 21, 18179–18187, DOI: 10.1039/C9CP03381E.

Solidification of Al-Pb Alloy under the Effect of Micro-Alloying Element Ti and C

2016 ◽  
Vol 879 ◽  
pp. 2439-2443 ◽  
Author(s):  
Qian Sun ◽  
Hong Xiang Jiang ◽  
Jiu Zhou Zhao
Keyword(s):  
Phase Transformation ◽  
Liquid Phase ◽  
Microstructure Evolution ◽  
Solidification Process ◽  
Miscibility Gap ◽  
Kinetic Behavior ◽  
Number Density ◽  
Alloying Element ◽  
Refinement Efficiency ◽  
Line Temperature

Experiments were carried to investigate the effect of TiC on the solidification process and microstructure of Al-Pb alloys. It is demonstrated that TiC particles are effective inoculants for the nucleation of the Pb-rich droplets during cooling an Al-Pb alloy in the miscibility gap. A model describing the kinetic behavior of TiC particles in the melt and the liquid-liquid decomposition of Al-Pb was developed. The dissolution, coarsening and precipitation processes of TiC particles as well as the microstructure evolution during the liquid-liquid phase transformation of an Al-Pb alloy were calculated. The numerical results indicate that what determines the refinement efficiency of TiC particles on the Pb-rich droplets/particles is the number density of TiC particles in the melt cooled to the binodal line temperature of the Al-Pb alloy. If the number density of TiC particles in the melt before the beginning of the liquid-liquid decomposition is high enough, the addition of TiC causes a refinement of the Pb-rich droplets/particles and promotes the formation of Al-Pb alloys with a well dispersed microstructure.

Inhibition of phase transformation from β- to α-tricalcium phosphate with addition of poly (L-lactic acid) in selective laser sintering

2014 ◽  
Vol 20 (5) ◽  
pp. 369-376 ◽  
Author(s):  
Cijun Shuai ◽  
Jingyu Zhuang ◽  
Shuping Peng ◽  
Xuejun Wen
Keyword(s):  
Phase Transformation ◽  
Lactic Acid ◽  
Liquid Phase ◽  
Energy Density ◽  
Porous Structure ◽  
Laser Energy ◽  
Selective Laser Sintering ◽  
Transient Liquid Phase ◽  
Laser Energy Density ◽  
Content Type

Purpose – The paper aims to fabricate an α-tricalcium phosphate (TCP) scaffold with an interconnected porous structure via selective laser sintering (SLS). To inhibit the phase transformation from β- to α-TCP in fabrication process of porous scaffolds, a small amount (1 weight per cent) of poly (L-lactic acid) (PLLA) is added into β-TCP powder to introduce the transient liquid phase. Design/methodology/approach – The paper opted for the transient liquid phase of melting PLLA to decrease the sintering temperature in SLS. Meanwhile, the densification of β-TCP is enhanced with a combined effect of the capillary force caused by melting PLLA and the surface energy of β-TCP particles. Moreover, the PLLA will gradually decompose and completely disappear with laser irradiation. Findings – The testing results show the addition of PLLA enables the scaffolds to achieve a higher β-TCP content of 77 ± 1.49 weight per cent compared with the scaffold sintered from β-TCP powder (60 ± 1.65 weight per cent), when the laser energy density is 0.4 J/mm2. The paper provides the mechanism of PLLA inhibition on the phase transformation from β- to α-TCP. And the optimum sintering parameters are obtained based on experimental results, which are used to prepare a TCP scaffold with an interconnected porous structure via SLS. Research limitations/implications – This paper shows that the laser energy density is an important sintering parameter that can provide the means to control the micro-porous structure of the scaffold. If the laser energy density is too low, the densification is not enough. On the other hand, if the laser energy density is too high, the microcracks are observed which are attributed to the volume expansion during the phase transformation from β- to α-TCP. Therefore, the laser energy density must be optimized. Originality/value – The paper provides a feasible method for fabricating TCP artificial bone scaffold with good biological and mechanical properties.

Texture Development and Phase Transformation in Liquid-Phase-Sintered SiC Ceramics

2002 ◽  
Vol 408-412 ◽  
pp. 1693-1698 ◽  
Author(s):  
Won Joong Kim ◽  
Young Wook Kim ◽  
Min Hyung Choi
Keyword(s):  
Phase Transformation ◽  
Liquid Phase ◽  
Texture Development ◽  
Sic Ceramics

scholarly journals Liquid-Liquid Phase Transformation in Carbon

1999 ◽  
Vol 82 (23) ◽  
pp. 4659-4662 ◽  
Author(s):  
James N. Glosli ◽  
Francis H. Ree
Keyword(s):  
Phase Transformation ◽  
Liquid Phase
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