Synthesis and characterization of large optical grade sapphire windows produced from a horizontal growth process

2013 ◽  
Author(s):  
Jonathan B. Levine ◽  
Timothy Burks ◽  
John Ciraldo ◽  
Matthew Montgomery ◽  
Andrey Novoselov ◽  
...  
Keyword(s):  
Growth Process ◽  
Synthesis And Characterization ◽  
Horizontal Growth

Synthesis and Characterization of Nanostructured Co(OH)2 and Co3O4 Thin Films by a Simple Solution Growth Process

2013 ◽  
Vol 537 ◽  
pp. 247-251
Author(s):  
Yu Xin Liu ◽  
Qun Yan Li ◽  
Zuo Ren Nie ◽  
Qi Wei
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Growth Process ◽  
Simple Solution ◽  
Solution Growth ◽  
Hydrolysis Reaction ◽  
Synthesis And Characterization ◽  
Solution Ph ◽  
Hydroxide Solution

Nanostructured Co(OH)2thin films were synthesized by a simple solution growth process. In experiment, F–and NH3were used as Co2+ordination agents, and hydroxyl ions were supplied by ammonia hydroxide solution for the hydrolysis reaction. The results showed that the solution pH and F/Co ratio had great influences on the morphologies of the thin films. The Co(OH)2thin films were constructed with lots of Co(OH)2nanoflakes. Nanostructured Co3O4 thin films were prepared by annealing the Co(OH)2thin films at 400°C for 2 h. The magnetic properties of Co3O4thin films were also investigated.

Synthesis and characterization of HPHT large single-crystal diamonds under the simultaneous influence of oxygen and hydrogen

CrystEngComm ◽  
2017 ◽  
Vol 19 (38) ◽  
pp. 5727-5734 ◽  
Author(s):  
Chao Fang ◽  
Yuewen Zhang ◽  
Weixia Shen ◽  
Shishuai Sun ◽  
Zhuangfei Zhang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Growth Process ◽  
Synthesis And Characterization ◽  
Large Single Crystal ◽  
Metal Melt ◽  
Simultaneous Influence

In this paper, we report the influence of oxygen and hydrogen additives in the metal melt on the growth process, morphology, and defect-and-impurity structure of large single-crystal diamonds.

Synthesis and Characterization of Hexagonal Prismatic Ca10(PO4)6(OH)2 Prepared by Homogeneous Precipitation Method

2011 ◽  
Vol 391-392 ◽  
pp. 1239-1243
Author(s):  
Zhan Hui Zhang ◽  
Zhi Liang Huang ◽  
Jian Qiu Li ◽  
Ru An Chi ◽  
Yue Hua Hu ◽  
...  
Keyword(s):  
Growth Process ◽  
Crystal Morphology ◽  
Precipitation Method ◽  
Synthesis And Characterization ◽  
Hexagonal Prism ◽  
Homogeneous Precipitation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Homogeneous Precipitation Method

Hexagonal prismatic hydroxyapatite (Ca10(PO4)6(OH)2, HAP) was successfully prepared by a homogeneous precipitation method. The products were characterized by X-ray diffraction, Fourier transform infrared spectrum, and scanning electron microscope. The growth process of the hexagonal prism was surveyed in detail based on the effects of the reaction time on the phase composition and the crystal morphology.

Synthesis and Characterization of the Three Dicyclopentapyrenes

1996 ◽  
Vol 61 (10) ◽  
pp. 3572-3572
Author(s):  
Lawrence T. Scott ◽  
Atena Necula
Keyword(s):  
Synthesis And Characterization

Synthesis and characterization of TiN / Ti / AISI 410 coatings

2018 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
S Chirino ◽  
Jaime Diaz ◽  
N Monteblanco ◽  
E Valderrama
Keyword(s):  
Synthesis And Characterization ◽  
Photoemission Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Columnar Grains ◽  
Tin Thin Films ◽  
Steel Aisi ◽  
Interacting Surfaces ◽  
Stainless Steel Aisi

The synthesis and characterization of Ti and TiN thin films of different thicknesses was carried out on a martensitic stainless steel AISI 410 substrate used for tool manufacturing. The mechanical parameters between the interacting surfaces such as thickness, adhesion and hardness were measured. By means of the scanning electron microscope (SEM) the superficial morphology of the Ti/TiN interface was observed, finding that the growth was of columnar grains and by means of EDAX the existence of titanium was verified.  Using X-ray diffraction (XRD) it was possible to observe the presence of residual stresses (~ -3.1 GPa) due to the different crystalline phases in the coating. Under X-ray photoemission spectroscopy (XPS) it was possible to observe the molecular chemical composition of the coating surface, being Ti-N, Ti-N-O and Ti-O the predominant ones.

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