scholarly journals Investigation of Boron Distribution at the SiO2/Si Interface of Monolayer Doping

ACS Omega ◽  
2021 ◽  
Author(s):  
Shu-Han Hsu ◽  
Chia-Chen Wan ◽  
Ta-Chun Cho ◽  
Yao-Jen Lee
Keyword(s):  
Boron Distribution

BORON DISTRIBUTION AT BOUNDARIES IN RAPIDLY SOLIDIFIED Ni3Al

1986 ◽  
Vol 47 (C7) ◽  
pp. C7-263-C7-268
Author(s):  
M. K. MILLER ◽  
J. A. HORTON
Keyword(s):  
Boron Distribution ◽  
Rapidly Solidified

Effect of boron distribution on grain-goundaries in Ni3Al

1990 ◽  
Vol 24 (10) ◽  
pp. 1857-1860 ◽  
Author(s):  
Shenhua Song ◽  
Zhexi Yuan ◽  
Tingdong Xu ◽  
ZongSen Yu
Keyword(s):  
Boron Distribution

Effects of boron distribution on sugar beet crop yield in two Tunisian soils

2018 ◽  
Vol 11 (15) ◽  
Author(s):  
Imene Dridi ◽  
Ahlem Tlili ◽  
Salma Fatnassi ◽  
Hédi Hamrouni ◽  
Moncef Gueddari
Keyword(s):  
Sugar Beet ◽  
Crop Yield ◽  
Boron Distribution ◽  
Sugar Beet Crop

Analyzing Boron in 9–12% Chromium Steels Using Atom Probe Tomography

2019 ◽  
Vol 25 (2) ◽  
pp. 462-469 ◽  
Author(s):  
Irina Fedorova ◽  
Flemming Bjerg Grumsen ◽  
John Hald ◽  
Hans-Olof Andrén ◽  
Fang Liu
Keyword(s):  
Grain Boundaries ◽  
Atom Probe Tomography ◽  
Atom Probe ◽  
Specimen Preparation ◽  
Accurate Analysis ◽  
Simple Method ◽  
Metal Borides ◽  
Boron Distribution ◽  
Cr Steels ◽  
Term Creep

AbstractSmall additions of boron can remarkably improve the long-term creep resistance of 9–12% Cr steels. The improvement has been attributed to boron segregation to grain boundaries during quenching, and subsequent boron incorporation into certain families of precipitates during tempering. However, the detailed mechanisms are not yet fully understood. Atom probe tomography (APT) is an excellent technique for gaining insights into boron distribution, however, in order to acquire accurate analysis of boron in 9–12% Cr steels using APT, there are several key challenges. In order to better understand and address these challenges, we developed a novel method for site-specific APT specimen preparation, which enables convenient preparation of specimens containing specifically selected grain boundaries positioned approximately perpendicular to the axis of the APT tip. Additionally, when analyzing boron at boundaries and in carbides (as diluted solute) and borides, a widening of the profile of boron distribution compared to other elements was repeatedly observed. This phenomenon is particularly analyzed and discussed in light of the evaporation field of different elements. Finally, the possible effects of detector dead-time on quantitative analysis of boron in metal borides are discussed. A simple method using 10B correction was used to obtain good quantification.

The Effect of the Graphitizing Heat Treatment and Boron Content on Boron Distribution in High Carbon Steel

2005 ◽  
Vol 475-479 ◽  
pp. 4157-4160 ◽  
Author(s):  
Kee Do Woo ◽  
S.W. Kim ◽  
Dong Ki Kim
Keyword(s):  
Heat Treatment ◽  
Carbon Steel ◽  
Electron Probe ◽  
Direct Relationship ◽  
Boron Content ◽  
High Carbon Steel ◽  
High Carbon ◽  
X Ray ◽  
Boron Segregation ◽  
Boron Distribution

It is convenient to analyze the distribution of boron in high carbon steel with boron, simply using neutron-induced radiography with a neutron fluency of 1.9 x 1013 [cm-2]. It was revealed by the neutron-induced radiography that the distribution of boron was dependent on boron contents, graphitizing temperature and time. The density of boron track increased with increasing boron contents. But the density of the boron track and graphite in high carbon steel graphitized at 700°C is higher than that of high carbon steel graphitized at 750°C. The density of graphite in high carbon steel also depends upon the content of boron and the graphitizing temperature. The shape of the boron track was changed from sphere to rod type when annealed at 800°C, in steel containing 50ppm of boron, due to different phases of boride. The distribution of boron segregation or boronrich precipitates in high carbon steel was well documented with a neutron-induced radiography, but the direct relationship between graphite and boron was not clarified by it. Furthermore, the analysis of electron probe X-ray microanalyzer (EPMA) also showed that the high amount of boron coexisted with carbon in graphite in high carbon steel.

scholarly journals Cooling Rate Dependence of Boron Distribution in Low Carbon Steel

2011 ◽  
Vol 43 (5) ◽  
pp. 1639-1648 ◽  
Author(s):  
Dong Jun Mun ◽  
Eun Joo Shin ◽  
Kyung Chul Cho ◽  
Jae Sang Lee ◽  
Yang Mo Koo
Keyword(s):  
Carbon Steel ◽  
Cooling Rate ◽  
Low Carbon Steel ◽  
Rate Dependence ◽  
Low Carbon ◽  
Boron Distribution

BORON DISTRIBUTION AND THE EFFECT OF LIME ON BORON UPTAKE BY PANSY, PETUNIA AND GERBERA PLANTS

2011 ◽  
pp. 135-140 ◽  
Author(s):  
B.A. Krug ◽  
B.E. Whipker ◽  
I. McCall ◽  
J. Frantz
Keyword(s):  
Boron Uptake ◽  
Boron Distribution
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