Particle Size-Dependent Structural Properties of Nanocrystalline Co3O4

2012 ◽  
Vol 638 (10) ◽  
pp. 1602-1602
Author(s):  
Pierre Jehl ◽  
Bernd Harbrecht
Keyword(s):  
Particle Size ◽  
Structural Properties ◽  
Size Dependent

scholarly journals Size-Dependent Structural Properties of a High-Nb TiAl Alloy Powder

Materials ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 161 ◽  
Author(s):  
Binglin Liu ◽  
Maosong Wang ◽  
Yulei Du ◽  
Jingxiao Li
Keyword(s):  
Particle Size ◽  
High Temperature ◽  
Structural Properties ◽  
Structural Changes ◽  
Structural Characteristics ◽  
Nominal Composition ◽  
Induction Melting ◽  
Powder Size ◽  
Size Dependent ◽  
High Temperature Xrd

TiAl-based alloys are promising light weight structural materials for high temperature applications in the field of aerospace. Recently, fabrication technologies starting from powders including powder metallurgy and additive manufacturing have been developed to overcome the difficulties in the processing, machining and shaping of TiAl-based alloys. Spherical alloy powders with different particle size distributions are usually used in these fabrication techniques. The purpose of this study is to reveal the size-dependent structural properties of a high-Nb TiAl powder for these fabrication technologies starting from powders. A high-Nb TiAl pre-alloyed powder with nominal composition of Ti-48Al-2Cr-8Nb (at. %) was prepared by the electrode induction melting gas atomization (EIGA) method. The phase structure and morphology of the as-atomized powders were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The size-dependent structural changes of the as-atomized powders with different sizes were studied by differential scanning calorimetry (DSC) and in situ high temperature XRD. It was found that with decreasing the powder size, the content of the γ-TiAl phase decreases and the α2-Ti3Al phase increases. The α2-Ti3Al to γ-TiAl phase transformation was found in the temperature range of 600–770 °C. Based on the present work, the structural characteristics of TiAl powders are strongly dependent on their particle size, which should be considered in optimizing the process parameters of TiAl alloys fabricated from powders.

Up-conversion emission and in vitro cytotoxicity characterization of blue emitting, biocompatible SrTiO3 nanoparticles activated with Tm3+ and Yb3+ ions

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 39469-39479 ◽  
Author(s):  
R. Pazik ◽  
A. Zięcina ◽  
B. Poźniak ◽  
M. Malecka ◽  
L. Marciniak ◽  
...  
Keyword(s):  
Particle Size ◽  
Cytotoxic Effect ◽  
In Vitro Cytotoxicity ◽  
Ion Release ◽  
Size Dependent ◽  
U2os Cells

Blue emitting, up-converting NP's of SrTiO3:Tm3+/Yb3+ synthesized using the citric route are biocompatible towards J774.E whereas the cytotoxic effect to U2OS cells is not particle size dependent but most probably is related to Sr2+ ion release.

Particle size dependent hysteresis loss in La0.7Ce0.3Fe11.6Si1.4C0.2 first‐order systems

2012 ◽  
Vol 100 (7) ◽  
pp. 072403 ◽  
Author(s):  
F. X. Hu ◽  
L. Chen ◽  
J. Wang ◽  
L. F. Bao ◽  
J. R. Sun ◽  
...  
Keyword(s):  
Particle Size ◽  
Hysteresis Loss ◽  
First Order ◽  
Size Dependent

Size-dependent solution-mediated phase transformation of piroxicam monohydrate particles

CrystEngComm ◽  
2021 ◽  
Vol 23 (16) ◽  
pp. 2928-2932
Author(s):  
Changlin Yao ◽  
Lei Wang ◽  
Xinyuan Wang ◽  
Xutang Tao
Keyword(s):  
Particle Size ◽  
Phase Transformation ◽  
Size Dependent

The transformation from the piroxicam monohydrate to form I or form II could be achieved precisely by adjusting the particle size itself in the 99% acetone-1% H2O solvent at 31 °C.

Effects of particle size and synthesis temperature on the structural properties of the Ni nanoparticles: Insights about the formation of the fcc-Ni structure

2009 ◽  
Author(s):  
Edvaldo Alves de Souza ◽  
Hebert Winnischofer ◽  
Paula Haddad ◽  
Tulio C. R. Costa ◽  
Daniela Zanchet ◽  
...  
Keyword(s):  
Particle Size ◽  
Structural Properties ◽  
Synthesis Temperature ◽  
Ni Nanoparticles

Spatial, seasonal and particle size dependent variations of PAH contamination in indoor dust and the corresponding human health risk

2019 ◽  
Vol 653 ◽  
pp. 423-430 ◽  
Author(s):  
Zhiguo Cao ◽  
Mengmeng Wang ◽  
Qiaoying Chen ◽  
Chunyou Zhu ◽  
Janye Jie ◽  
...  
Keyword(s):  
Particle Size ◽  
Health Risk ◽  
Human Health ◽  
Human Health Risk ◽  
Indoor Dust ◽  
Size Dependent

scholarly journals Speciation and pH- and particle size-dependent solubility of phosphorus in tropical sandy soils

Geoderma ◽  
2022 ◽  
Vol 408 ◽  
pp. 115590
Author(s):  
Apinya Saentho ◽  
Worachart Wisawapipat ◽  
Phrueksa Lawongsa ◽  
Surachet Aramrak ◽  
Nattaporn Prakongkep ◽  
...  
Keyword(s):  
Particle Size ◽  
Sandy Soils ◽  
Size Dependent
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