Results 81 to 90 of about 19,927 (215)

Production of AA6061/TiB2/B4C/GNP hybrid surface composites processed by friction stir processing (FSP) and ınvestigation of mechanical properties

Gazi Üniversitesi Fen Bilimleri Dergisi
Bu çalışmada sürtünme karıştırma yöntemi ile AA6061 alüminyum alaşımı ve farklı oranlarda TiB2/Nano Grafen/B4C takviyeli hibrit yüzey kompozitleri üretilmiş ve mekanik özellikleri ile mikroyapı analizleri yapılmıştır.
Burcu Şahingöz, Halil Karakoç , Ramazan Çıtak   +2 more
doaj   +1 more source

Sinterability of SiB6-B4C ceramics.

Journal of Advanced Science, 2000
Silicon boride (SiB6) was reported that have the characteristics of oxidization resistance and excellent hardness in the high temperature. On the other hand, Boron carbide (B4C) was known that have high hardness after the diamond, and high See-beck coefficient.
Satoshi KIMURA, Samon TANAKA, Noriyuki TAKASHIMA, Jun-ichi MATSUSHITA   +3 more
openaire   +2 more sources

GUTs with dim-5 interactions: Gauge Unification and Intermediate Scales

, 2010
Dimension-5 corrections to the gauge kinetic term of Grand Unified Theories (GUTs) may capture effects of quantum gravity or string compactification. Such operators modify the usual gauge coupling unification prediction in a calculable manner.
Amitava Raychaudhuri, G. G. Ross, H. Georgi, Joydeep Chakrabortty, R. N. Mohapatra   +4 more
core   +1 more source

Tuning mechanical and electrical performances of B4C–TiB2 ceramics in a two-step spark plasma sintering process

Journal of Advanced Ceramics
B4C–TiB2 is an advanced electrically conductive ceramic with excellent mechanical and electrical discharge machinable properties. It is challenging and rewarding to achieve highly conductive and hard B4C–TiB2 composites at a minimum content of conductive
Jun Zhao, Xingshuo Zhang, Zongning Ma, Dong Wang, Xing Jin, Songlin Ran   +5 more
doaj   +1 more source

The effect of B4C particle size on the reaction process and product in the Cu–Zr–B4C system

Journal of Asian Ceramic Societies, 2015
ZrC and ZrB2 were prepared by self-propagating high-temperature synthesis in a Cu–Zr–B4C system. We explored the influence of B4C particle size on the reaction process, phase composition and microstructure of the products.
Mengxian Zhang, Yanqiu Huo, Min Huang, Yihang Fang, Guping Wang   +4 more
doaj   +1 more source

The synthesis of boron carbide filaments final report [PDF]

Synthesis, strength, crystal structure, and composite material formation of boron carbide ...
Cree, R., Feingold, E., Gatti, A., Mehan, R.   +3 more
core   +1 more source

Design and realization of a sputter deposition system for the \textit{in situ-} and \textit{in operando-}use in polarized neutron reflectometry experiments

, 2017
We report on the realization of a sputter deposition system for the in situ- and in operando-use in polarized neutron reflectometry experiments. Starting with the scientific requirements, which define the general design considerations, the external ...
Böni, Peter, Förg, Benjamin, Herrnberger, Alexander, Kreuzpaintner, Wolfgang, Mairoser, Thomas, Mannhart, Jochen, Meir, Stefan, Schmehl, Andreas, Stephanos, Cyril, Wiedemann, Birgit   +9 more
core   +1 more source

Improving properties of boron carbide (B4C) with silicon doping and titanium diboride addition

Open Ceramics
In this research, B4C-TiB2 composites were successfully fabricated via the spark plasma sintering method. First, the TiB2 source effect on the B4C-TiB2 composites was investigated using commercially available TiB2 and in-house synthesized TiB2 ...
Zeynep Ayguzer Yasar, Andrew Pereira, Richard A. Haber   +2 more
doaj   +1 more source

Roadmap of left-right models based on GUTs

, 2018
We perform a detailed study of the grand unified theories $SO(10)$ and $E(6)$ with left-right intermediate gauge symmetries of the form $SU(N)_L\otimes SU(N)_R \otimes \mathcal{G}$.
Chakrabortty, Joydeep, Maji, Rinku, Mohanty, Subhendra, Patra, Sunando Kumar, Srivastava, Tripurari   +4 more
core   +1 more source

Fast-spectrum space-power-reactor concepts using boron control devices [PDF]

Several fast-spectrum space power reactor concepts that use boron carbide control devices were examined to determine the neutronic feasibility of the designs. The designs considered were (1) a 199-fuel-pin, 12-poison-reflector-control-drum reactor; (2) a
Mayo, W.
core   +1 more source