Using substitutes of hydrofluoric acid for the chemical polishing of crystal glass articles

1977 ◽  
Vol 34 (1) ◽  
pp. 47-50 ◽  
Author(s):  
O. D. Khait ◽  
V. K. Markaryan
Keyword(s):  
Hydrofluoric Acid ◽  
Chemical Polishing ◽  
Crystal Glass

Atomically controlled chemical polishing of GaN using platinum and hydrofluoric acid

2012 ◽  
Vol 9 (3-4) ◽  
pp. 433-435 ◽  
Author(s):  
Shun Sadakuni ◽  
Junji Murata ◽  
Yasuhisa Sano ◽  
Keita Yagi ◽  
Takeshi Okamoto ◽  
...  
Keyword(s):  
Hydrofluoric Acid ◽  
Chemical Polishing

Purification of fluoride-containing gas from the chemical polishing of lead crystal glass

1979 ◽  
Vol 36 (10) ◽  
pp. 542-544
Author(s):  
A. N. Balobolkin ◽  
S. V. Abionyan ◽  
S. P. Ivanov
Keyword(s):  
Chemical Polishing ◽  
Crystal Glass ◽  
Lead Crystal

Chemical polishing of crystal glass with concentrated acids

1990 ◽  
Vol 47 (11) ◽  
pp. 433-434 ◽  
Author(s):  
Yu. S. Lazarev ◽  
V. A. Drozhzhinov
Keyword(s):  
Chemical Polishing ◽  
Crystal Glass

Arsenic segregation in polysilicon

1983 ◽  
Vol 41 ◽  
pp. 154-155 ◽  
Author(s):  
P.E. Batson ◽  
C.R.M. Grovenor ◽  
D.A. Smith ◽  
C. Wong
Keyword(s):  
Incident Beam ◽  
Silicon Wafers ◽  
Chemical Polishing ◽  
Bright Field Image ◽  
Beam Size ◽  
Stem Analysis ◽  
Bright Field ◽  
Twin Boundaries ◽  
X Ray ◽  
Line Scan

In this work As doped polysilicon was deposited onto (100) silicon wafers by APCVD at 660°C from a silane-arsine mixture, followed by a ten minute anneal at 1000°C, and in one case a further ten minute anneal at 700°C. Specimens for TEM and STEM analysis were prepared by chemical polishing. The microstructure, which is unchanged by the final 700°C anneal,is shown in Figure 1. It consists of numerous randomly oriented grains many of which contain twins.X-ray analysis was carried out in a VG HB5 STEM. As K α x-ray counts were collected from STEM scans across grain and twin boundaries, Figures 2-4. The incident beam size was about 1.5nm in diameter, and each of the 20 channels in the plots was sampled from a 1.6nm length of the approximately 30nm line scan across the boundary. The bright field image profile along the scanned line was monitored during the analysis to allow correlation between the image and the x-ray signal.

Rates of Dissolution of Hafnium Metal in Hydrofluoric Acid*

1961 ◽  
Vol 27 (3_4) ◽  
pp. 199-208 ◽  
Author(s):  
W. J. James ◽  
J. W. Johnson ◽  
M. E. Straumanis
Keyword(s):  
Hydrofluoric Acid

Evaluation of Organic Hydrofluoric Acid Mixtures for Sandstone Acidising

2013 ◽  
Author(s):  
B.G. Al-Harbi ◽  
M.N. Al-Dahlan ◽  
M.H. Al-Khaldi ◽  
A.M. Al-Harith ◽  
A.K. Abadi
Keyword(s):  
Hydrofluoric Acid

Ferrozine Assay for Simple and Cheap Iron Analysis of Silica-Coated Iron Oxide Nanoparticles

2018 ◽  
Author(s):  
Hattie Ring ◽  
Zhe Gao ◽  
Nathan D. Klein ◽  
Michael Garwood ◽  
John C. Bischof ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Hydrofluoric Acid ◽  
Inductively Coupled Plasma ◽  
Silica Shell ◽  
Oxide Nanoparticles ◽  
Inductively Coupled ◽  
Digestion Process ◽  
Plasma Methods ◽  
Iron Analysis

The Ferrozinen assay is applied as an accurate and rapid method to quantify the iron content of iron oxide nanoparticles (IONPs) and can be used in biological matrices. The addition of ascorbic aqcid accelerates the digestion process and can penetrate an IONP core within a mesoporous and solid silica shell. This new digestion protocol avoids the need for hydrofluoric acid to digest the surrounding silica shell and provides and accessible alternative to inductively coupled plasma methods. With the updated digestion protocol, the quantitative range of the Ferrozine assay is 1 - 14 ppm. <br>

Ferrozine Assay for Simple and Cheap Iron Analysis of Silica-Coated Iron Oxide Nanoparticles

2018 ◽  
Author(s):  
Hattie Ring ◽  
Zhe Gao ◽  
Nathan D. Klein ◽  
Michael Garwood ◽  
John C. Bischof ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Hydrofluoric Acid ◽  
Inductively Coupled Plasma ◽  
Silica Shell ◽  
Oxide Nanoparticles ◽  
Inductively Coupled ◽  
Digestion Process ◽  
Plasma Methods ◽  
Iron Analysis

The Ferrozinen assay is applied as an accurate and rapid method to quantify the iron content of iron oxide nanoparticles (IONPs) and can be used in biological matrices. The addition of ascorbic aqcid accelerates the digestion process and can penetrate an IONP core within a mesoporous and solid silica shell. This new digestion protocol avoids the need for hydrofluoric acid to digest the surrounding silica shell and provides and accessible alternative to inductively coupled plasma methods. With the updated digestion protocol, the quantitative range of the Ferrozine assay is 1 - 14 ppm. <br>

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