Synthesis of a high-boron aluminum boride via borothermic reduction of alumina

2000 ◽  
Vol 36 (8) ◽  
pp. 776-782 ◽  
Author(s):  
N. V. Kirillova ◽  
A. I. Kharlamov ◽  
S. V. Loichenko
Keyword(s):  
Aluminum Boride ◽  
High Boron ◽  
Borothermic Reduction

ChemInform Abstract: Synthesis of a High-Boron Aluminum Boride via Borothermic Reduction of Alumina.

ChemInform ◽  
2001 ◽  
Vol 32 (9) ◽  
pp. no-no
Author(s):  
N. V. Kirillova ◽  
A. I. Kharlamov ◽  
S. V. Loichenko
Keyword(s):  
Aluminum Boride ◽  
High Boron ◽  
Borothermic Reduction

Electroless Plating of Transition Metal Boride with High Boron Content as Superior HER Electrocatalyst

ChemCatChem ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3068-3075 ◽  
Author(s):  
Ruiqi Zhang ◽  
Huixiang Liu ◽  
Chenfeng Wang ◽  
Lincai Wang ◽  
Yanjing Yang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Electroless Plating ◽  
Boron Content ◽  
Metal Boride ◽  
High Boron

scholarly journals The Effect of Quenching and Partitioning (Q&P) Heat Treatment on the Microstructure and Mechanical Properties of High Boron Steel

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1556
Author(s):  
Zhao Li ◽  
Run Wu ◽  
Mingwei Li ◽  
Song-Sheng Zeng ◽  
Yu Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Volume Fraction ◽  
Martensitic Steel ◽  
Boron Steel ◽  
Quenching And Partitioning ◽  
Effect Mechanism ◽  
Microstructure And Mechanical Properties ◽  
High Boron ◽  
Cast Condition

High boron steel is prone to brittle failure due to the boride distributed in it with net-like or fishbone morphology, which limit its applications. The Quenching and Partitioning (Q&P) heat treatment is a promising process to produce martensitic steel with excellent mechanical properties, especially high toughness by increasing the volume fraction of retained austensite (RA) in the martensitic matrix. In this work, the Q&P heat treatment is used to improve the inherent defect of insufficient toughness of high boron steel, and the effect mechanism of this process on microstructure transformation and the change of mechanical properties of the steel has also been investigated. The high boron steel as-casted is composed of martensite, retained austensite (RA) and eutectic borides. A proper quenching and partitioning heat treatment leads to a significant change of the microstructure and mechanical properties of the steel. The net-like and fishbone-like boride is partially broken and spheroidized. The volume fraction of RA increases from 10% in the as-cast condition to 19%, and its morphology also changes from blocky to film-like. Although the macro-hardness has slightly reduced, the toughness is significantly increased up to 7.5 J·cm−2, and the wear resistance is also improved.

scholarly journals Geochemical Studies of Boron. IX. On the Mineral Springs of High Boron Content.

1954 ◽  
Vol 75 (4) ◽  
pp. 407-410
Author(s):  
Satoru Mutoo
Keyword(s):  
Boron Content ◽  
Mineral Springs ◽  
High Boron ◽  
Geochemical Studies

scholarly journals Metal–organic frameworks (MOFs) as highly efficient agents for boron removal and boron isotope separation

RSC Advances ◽  
2017 ◽  
Vol 7 (26) ◽  
pp. 16022-16026 ◽  
Author(s):  
Jiafei Lyu ◽  
Hongxu Liu ◽  
Jingshuang Zhang ◽  
Zhouliangzi Zeng ◽  
Peng Bai ◽  
...  
Keyword(s):  
Separation Factor ◽  
Isotope Separation ◽  
Metal Organic Frameworks ◽  
Boron Isotope ◽  
Boron Removal ◽  
Boron Uptake ◽  
Highly Efficient ◽  
Metal Organic ◽  
High Boron

A variety of MOFs were observed with ZIF-8, to our knowledge, showing the highest boron uptake and MIL-101(Cr) with an unprecedentedly high boron isotope separation factor.

Effect of ultrasound on the plasticity of high-boron stainless steel

1966 ◽  
Vol 20 (5) ◽  
pp. 511-513
Author(s):  
L. E. Al'shevskii ◽  
Yu. S. Kuz'michev ◽  
L. M. Kurochkina ◽  
I. S. Lupakov ◽  
V. E. Neimark ◽  
...  
Keyword(s):  
Stainless Steel ◽  
High Boron

Tourmaline concentrations in Proterozoic sediments of the southern Cordillera of Canada and their economic significance

1977 ◽  
Vol 14 (10) ◽  
pp. 2348-2363 ◽  
Author(s):  
V. G. Ethier ◽  
F. A. Campbell
Keyword(s):  
Heat Flow ◽  
Sedimentary Rocks ◽  
Local Area ◽  
Economic Importance ◽  
Coarse Grained ◽  
Economic Significance ◽  
Lower Proterozoic ◽  
Lead Zinc ◽  
High Boron ◽  
Boron Level

Local concentrations of tourmaline occur in the lower Proterozoic (Helikian) Aldridge Formation of southeastern British Columbia, in some places in association with stratiform lead–zinc mineralization as at the Sullivan, Stemwinder, and North Star orebodies. The amount of boron in the rock is as much as two orders of magnitude above average levels reported for the Aldridge Formation or other similar types of sedimentary rocks. The concentrations are not detrital, but are caused by an anomalously high boron level, in a local area, at the time of sedimentation. The appearance of tourmaline within rip-up clasts, and in laminae within pebbles, is evidence of syngenetic introduction of boron.Three populations of tourmalines, on the basis of composition as determined by microprobe analyses, are described from the area:(1) A Proterozoic stock intruding the Aldridge Formation contains abundant schorl.(2) A tourmaline intermediate in composition between dravite and schorl is typical of Aldridge metasediments. Texturally this type occurs as (a) fine felted aggregates in the footwall of the Sullivan orebody, (b) disseminated through waste beds, and (c) in local concentrations removed from the Sullivan orebody.(3) Coarse-grained recrystallized tourmaline associated with the Sullivan ore is magnesium-rich. Recrystallization is erratic, and is probably related to uneven heat flow during metamorphism and to differences in bulk composition.The economic importance of tourmaline concentrations in the Aldridge Formation is their association in both space and time with stratiform sulfides.

Effect of solidification rate on microstructure and toughness of Ca-Ti modified high boron high speed steel

2019 ◽  
Vol 742 ◽  
pp. 617-627 ◽  
Author(s):  
Xiangyi Ren ◽  
Hanguang Fu ◽  
Jiandong Xing ◽  
Yanliang Yi
Keyword(s):  
High Speed ◽  
Solidification Rate ◽  
High Speed Steel ◽  
High Boron

A new synthesis route to light lanthanide borides: borothermic reduction of oxides enhanced by electron beam bombardment

2002 ◽  
Vol 346 (1-2) ◽  
pp. 311-313 ◽  
Author(s):  
Alessandro Latini ◽  
Francesco Di Pascasio ◽  
Daniele Gozzi
Keyword(s):  
Electron Beam ◽  
Synthesis Route ◽  
New Synthesis ◽  
Light Lanthanide ◽  
Reduction Of Oxides ◽  
Borothermic Reduction

scholarly journals Growth and characterization of BCN nanotubes with high boron and nitrogen content

2013 ◽  
Vol 125 (5) ◽  
pp. 1169-1176 ◽  
Author(s):  
GUO ZHANG ◽  
ZHIYE LIU ◽  
LIANPING ZHANG ◽  
LIQIANG JING ◽  
KEYING SHI
Keyword(s):  
Nitrogen Content ◽  
High Boron
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