نتایج جستجو برای: نانوذرات sic

تعداد نتایج: 20422  

2013
Patrick Fiorenza Filippo Giannazzo Lukas K Swanson Alessia Frazzetto Simona Lorenti Mario S Alessandrino Fabrizio Roccaforte

The electrical compensation effect of the nitrogen incorporation at the SiO2/4H-SiC (p-type) interface after thermal treatments in ambient N2O is investigated employing both scanning spreading resistance microscopy (SSRM) and scanning capacitance microscopy (SCM). SSRM measurements on p-type 4H-SiC areas selectively exposed to N2O at 1150 °C showed an increased resistance compared to the unexpo...

A. Nemati K. Arzani M. Azadmand N. Riahi Noori T. Ebadzadeh

In this research the influence of adding SiC on microstructure and electrical properties of ZnO-based Nanocomposite varistors were investigated. SiC was added with amounts of 10-0 mass% to ZnO-based varistor composition. It is found that SiC allows reaching to high threshold voltage with formation of fine-graine...

1999
X. Wang

This paper describes the results of an exploratory study of blanket concepts based on SiC/SiC structure and LiPb breeder. An assessment of the performance of these concepts for advanced power plant application i s presented, key issues are identified, and constraints relating to the SiC/SiC properties are discussed.

1998
Philip G. Neudeck Christian Fazi

Single-shot nanosecond risetime pulse testing of SiC devices is demonstrated to reveal unique and highly crucial device performance information not obtainable by conventional DC and RF electrical testing. This paper describes some strikingly important device behaviors observed during pulse-testing experiments of 4H-SiC pn junction diodes. Specific observations include: 1) a remarkably fast and ...

2009
T. L. Daulton F. J. Stadermann T. J. Bernatowicz S. Amari

Introduction: Submicron-to micron-sized grains of SiC originating from asymptotic giant branch (AGB) stars and supernovae (SN) can be ubiquitous in the matrices of primitive chondrites. Previous work has shown that presolar SiC occurs as three fundamental polytypes or stacking sequences (cubic 3C, hexagonal 2H, and one-dimensionally disordered hexagonal structure designated here ∞H) along with ...

2018
Xinghao Liang Yang Li Qiang Zhao Zheng Zhang Xiaoping Ouyang

Silicon carbide (SiC) is considered as an important material for nuclear engineering due to its excellent properties. Changing the carbon content in SiC can regulate and control its elastic and thermodynamic properties, but a simulation study of the effect of carbon content on the sputtering (caused by the helium ions) of SiC is still lacking. In this work, we used the Monte-Carlo and molecular...

2005
Haiying He Mrinalini Deshpande Richard E. Brown Ravindra Pandey Udo C. Pernisz

The diffusion of water in amorphous SiC a-SiC was investigated by molecular modeling methods based on density functional theory. It was assumed that the structure of a-SiC at the molecular level can be described by a model that takes into account a distribution of cage structures which consist of SiC units forming n-member rings from a suitable precursor in a chemical vapor deposition process. ...

2009
TAWFIG ELTAIF HOSSAM M. H. SHALABY SAHBUDIN SHAARI MOHAMMAD M. N. HAMARSHEH

In this paper successive interference cancellation (SIC) based on optical code division multiple access (O-CDMA) systems has been investigated. SIC scheme refers to a family of low complexity multi-user detection (MUD) methods for direct sequence CDMA systems. Performance of optical CDMA system is influenced by multiple access interference (MAI) resulted from the overlapping between the users. ...

ژورنال: پژوهش نفت 2013

روش الکترولس به‌دلیل قدرت بسیار خوب روکش و قابلیت ایجاد رسوب یکنواخت حتی در سطوح با اشکال پیچیده و لبه‌دار، در بسیاری از موارد مناسب‌ترین روش اعمال پوشش می‌باشد. فلزات مختلفی را می‌توان به روش الکترولس روی سطح رسوب داد اما الکترولس نیکل- فسفر به دلیل خواص منحصر به فرد، کاربرد وسیعی دارد. جدیدترین یافته‌ها در زمینه پوشش الکترولس نیکل- فسفر، رسوب‌دهی همزمان ذرات جامد در طول پوشش‌دهی است. پوشش‌های...

2014

SIC (Successive Interference Cancellation) is an effective way of multiple packet reception (MPR) to fight with interference in wireless networks. Most of the existing methods for SIC in wireless networks are mainly focusing on link scheduling. For characterizing the impact of SIC, two interference models such as layered protocol model and layered physical model are introduced. Various existing...

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