Orientation control for a-axis or c-axis oriented crystal films of hydroxyapatite, and a possible growth mechanism derived from X-ray diffraction

2019 ◽  
Vol 484 ◽  
pp. 433-440 ◽  
Author(s):  
Masanobu Kusunoki ◽  
Yasuhiro Sakoishi ◽  
Takayuki Makino ◽  
Tomoya Tsunemine ◽  
Naoki Fujita ◽  
...  
Keyword(s):  
Growth Mechanism ◽  
X Ray Diffraction ◽  
Oriented Crystal ◽  
Orientation Control ◽  
X Ray ◽  
Crystal Films

Effects of Sputtering Pressure on (ZnO)x(InN)1-x Crystal Film Growth at 450°C

2018 ◽  
Vol 941 ◽  
pp. 2093-2098
Author(s):  
Naho Itagaki ◽  
Kazuto Takeuchi ◽  
Nanoka Miyahara ◽  
Kouki Imoto ◽  
Hyun Woong Seo ◽  
...  
Keyword(s):  
Film Growth ◽  
Rf Magnetron Sputtering ◽  
Full Width ◽  
Half Maximum ◽  
X Ray Diffraction ◽  
X Ray ◽  
Crystal Film ◽  
Crystal Films ◽  
Sputtering Pressure

We studied effects of sputtering pressure on growth of (ZnO)x(InN)1-xcrystal films deposited at 450°C by rf magnetron sputtering. Epitaxial growth of (ZnO)x(InN)1-xfilms was realized on single-crystalline ZnO template. X-ray diffraction measurements show that full width at half maximum of the rocking curves from the (101) plane of the films reaches minimum value of 0.11º at 0.5 Pa. The sputtering gas pressure is a key tuning knob for controlling the crystal quality of ZION films.

Transformation of ferrihydrite to hematite: anin situinvestigation on the kinetics and mechanisms

2008 ◽  
Vol 72 (1) ◽  
pp. 217-220 ◽  
Author(s):  
H. P. Vu ◽  
S. Shaw ◽  
L. G. Benning
Keyword(s):  
High Resolution ◽  
Growth Mechanism ◽  
Elevated Temperatures ◽  
X Ray Diffraction ◽  
Electron Microscopic ◽  
Time Resolved ◽  
X Ray ◽  
Resolution Electron ◽  
Stage Process

AbstractThe kinetics and mechanisms of the transformation of 2-line ferrihydrite (FH) to hematite (HM), in the presence of Pb at elevated temperatures and high pH condition, were elucidated using synchrotron-based,in situenergy dispersive X-ray diffraction (EDXRD). The time-resolved diffraction data indicated that HM crystallization occurred via a two-stage process. Based on the EDXRD data, combined with high-resolution electron microscopic images, an aqueous-aided 2D growth mechanism is proposed for both HM crystallization stages.

In2O3-ZnO heterostructure development in electrical and photoluminescence properties of In2O3 1-D nanostructures

2014 ◽  
Vol 28 (16) ◽  
pp. 1450101 ◽  
Author(s):  
M. Shariati ◽  
V. Ghafouri
Keyword(s):  
Growth Mechanism ◽  
X Ray Diffraction ◽  
Thermal Evaporation Method ◽  
Xrd Pattern ◽  
One Dimensional ◽  
X Ray ◽  
1D Nanostructures ◽  
Vapor Liquid Solid Mechanism ◽  
Vls Growth ◽  
Spherical Caps

Indium Oxide quasi one-dimensional (1D) nanostructures known as nanowires and nanorods synthesis using the thermal evaporation method, has been articulated. To nucleate growth sites, substrate seeding promoted 1D nanostructures growth. The catalyst-mediated growth mechanism showed more favorable morphologies and physical properties in under vacuum conditions associated with bottom-up technique. Scanning electron microscopy (SEM) results showed that the Zn -doped 1D nanostructures had spherical caps. The X-ray diffraction (XRD) pattern and energy-dispersive X-ray (EDX) spectrum indicated that these caps intensively associated with ZnO . Therefore, it was reasonable that the vapor–liquid–solid mechanism (VLS) was responsible for the growth of the In 2 O 3- ZnO heterostructure nanowires. This technique enhances optical and electrical properties in nanostructures. The photoluminescence (PL) analysis in Zn -doped In 2 O 3 nanowires and nanorods shows that the intensity of the visible and UV-region emissions overwhelmingly increases and resistance measurement professes the improvement of linear conductance in VLS growth mechanism.

scholarly journals Analysis of the shape of x-ray diffraction peaks originating from the hexatic phase of liquid crystal films

2017 ◽  
Vol 647 (1) ◽  
pp. 169-178 ◽  
Author(s):  
I. A. Zaluzhnyy ◽  
R. P. Kurta ◽  
A. P. Menushenkov ◽  
B. I. Ostrovskii ◽  
I. A. Vartanyants
Keyword(s):  
Liquid Crystal ◽  
X Ray Diffraction ◽  
X Ray ◽  
Liquid Crystal Films ◽  
Hexatic Phase ◽  
Crystal Films ◽  
Diffraction Peaks

scholarly journals Time-Resolved X-ray Diffraction of the Photochromic α-Styrylpyrylium Trifluoromethanesulfonate Crystal Films Reveals Ultrafast Structural Switching

2009 ◽  
Vol 131 (41) ◽  
pp. 15018-15025 ◽  
Author(s):  
Jörg Hallmann ◽  
Wolfgang Morgenroth ◽  
Carsten Paulmann ◽  
Jav Davaasambuu ◽  
Qingyu Kong ◽  
...  
Keyword(s):  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Crystal Films

Spherical Nanometer Strontium Carbonate by Ultrasonic Method in the Water Phase

2014 ◽  
Vol 881-883 ◽  
pp. 1003-1006
Author(s):  
Zhan Shou Yang ◽  
Mi Xiang Qi ◽  
Shu Ya Wang
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Growth Mechanism ◽  
Ultrasonic Method ◽  
Strontium Carbonate ◽  
Strontium Oxide ◽  
X Ray Diffraction ◽  
X Ray ◽  
Suitable Amount ◽  
Scanning Electron

strontium carbonate nanopowder materials were synthesized using Sr(OH)2 and Na2CO3 or CO2 as starting materials in the water by ultrasonic irradiation at 3h,and adding suitable amount of EDTA morphology agent.samples were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD) through separating strontium oxide solution slurry through by centrifuge , washing strontium carbonate slurry by ethanol.XRD and SEM showed that These products were found to be orthorhombic and spherical nanometer strontium carbonate and to be explained the growth mechanism of nano strontium carbonate powder.

Microwave-Assisted Preparation of Cu2O Octahedral Microcrystals

2011 ◽  
Vol 284-286 ◽  
pp. 746-749
Author(s):  
Chong Hai Deng ◽  
Han Mei Hu ◽  
Ming Di Yang
Keyword(s):  
Electron Microscopy ◽  
Solid Solution ◽  
Scanning Electron Microscopy ◽  
Growth Mechanism ◽  
X Ray Diffraction ◽  
Chemical Route ◽  
X Ray ◽  
Microwave Assisted ◽  
Morphology And Structure ◽  
Scanning Electron

In this paper, we reported a facile microwave-assisted green chemical route to prepare pure, uniform, and monodispersed Cu2O octahedron wrapped by the {111} faces by using glucose as a reducing agent. X-ray diffraction (XRD), energy dispersive X-ray spectrometry(EDX) and field emission scanning electron microscopy (FESEM) were used to characterize the as-synthesized products. It was found that the morphology and structure of Cu2O crystals were greatly affected by the concentration of NaOH. A solid-solution-solid growth mechanism was possibly proposed on the basis of the comparative experimental results.

Crystal Structures of Epitaxially Grown Fe16N2 Single Crystal Films with Giant Magnetic Moments

1992 ◽  
Vol 263 ◽  
Author(s):  
Matahiro Komuro ◽  
Hiroyuki Hoshiya ◽  
Hiroaki Takahashi ◽  
Katsuya Mitsuoka ◽  
Yutaka Sugita
Keyword(s):  
Crystal Orientation ◽  
Magnetic Moments ◽  
Diffraction Method ◽  
Lattice Parameters ◽  
X Ray Diffraction ◽  
X Ray ◽  
Single Crystal Films ◽  
Crystal Films ◽  
Diffraction Peaks ◽  
Good Agreement

ABSTRACTLattice parameters and crystal orientation for Fe1 6.N2 were determined by an X-ray diffraction method using a three axes goniometer. The lattice parameters of the a-axis and c-axis(a0, c0.) are 5.71 !A and 6.33 !A, respectively. The co corresponds to that of In0, 2,Gao.,s As substrates. Crystal orientation between Fe1 5.N2. films and Ino.,2Gao.,8 As is Fe1 0N2(001)//In0 2.Ga0.2 As(1001) and Fe1 0.N2.(100)//In02Ga0.6As(100). Intensity ratios for these diffraction peaks are in good agreement with calculated values proposed by Jack.

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