ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Nanoscience and Technology: An International Journal
ESCI SJR: 1.031 SNIP: 1.517 CiteScore™: 0.7

ISSN 印刷: 2572-4258
ISSN オンライン: 2572-4266

Nanoscience and Technology: An International Journal

Formerly Known as Nanomechanics Science and Technology: An International Journal

DOI: 10.1615/NanoSciTechnolIntJ.v8.i4.50
pages 347-357

MECHANICAL PROPERTIES OF Si3N4-BASED COMPOSITE CERAMICS WITH NANOSIZED POROSITY

Sergey A. Lurie
Institute of Applied Mechanics of the Russian Academy of Sciences, 7th Leningrhadsky Ave., Moscow, 125040, Russia; Moscow Aviation Institute National Research University, 4 Volokolamskoe Highway, Moscow, 125080, Russia
Lev N. Rabinskiy
Department of Engineering Education, Moscow Aviation Institute (National Research University), 4 Volokolamskoe Highway, Moscow, 125993, Russian Federation
P. O. Polyakov
Moscow Aviation Institute, 4 Volokolamskoe Highway, Moscow, 125933, Russia
S. A. Sitnikov
Moscow Aviation Institute, 4 Volokolamskoe Highway, Moscow, 125933, Russia
Yury Solyaev
Institute of Applied Mechanics, Russian Academy of Sciences, 7 Leningradskii Ave., Moscow, 125040, Russia; Moscow Aviation Institute, 4 Volokolamskoe Highway, Moscow, 125080, Russia

要約

The paper presents the results of experimental and theoretical investigation of the mechanical properties of composite ceramics based on silicon nitride, reinforced with silicon carbide fibers. Composite ceramics samples reinforced with unidirectional fibers with a volume content of 10% were obtained using the 3D printing technology and manual lay-up method. The ceramic matrix contains up to 30% of porosity, and the average pore size is less than 1 μm. Flexural strength and the Young modulus of the pure and reinforced ceramics were determined in three-point bending tests. The results of experimental studies are compared with those of modeling. FE simulation of a porous matrix is performed based on realistic representative fragments generated using an overlapped solid grains model. Evaluation of the influence of fibers on the properties of unidirectional samples is performed on the basis of a simple slab model with regard to the porous matrix effective properties found in numerical simulations. It is shown that the experimental results for the effective elastic modulus of the composites agree well with the calculation results, but the strength of the experimental samples is 30% lower than that calculated.


Articles with similar content:

FEASIBILITY STUDY OF PARAFFIN-BASED FUELS FOR HYBRID ROCKET ENGINE APPLICATIONS
International Journal of Energetic Materials and Chemical Propulsion, Vol.13, 2014, issue 6
Giovanni Consolati, Emanuele Cavanna, Mario Kobald, Luigi T. De Luca, Elena Toson, Helmut K. Ciezki
A COMPARATIVE STUDY OF THE MECHANICAL PROPERTIES OF GLASS−POLYESTER COMPOSITES FILLED WITH INDUSTRIAL WASTES
Composites: Mechanics, Computations, Applications: An International Journal, Vol.5, 2014, issue 4
Arun Kumar Rout, Subhrajit Ray
OPTIMIZATION OF VIP PARAMETERS OF THE MECHANICAL PROPERTIES OF GFRP COMPOSITE
Composites: Mechanics, Computations, Applications: An International Journal, Vol.10, 2019, issue 3
Amin Abbasi Talabari, M. H. Alaei
TRIBOMECHANICAL PERFORMANCE OF GLASS–EPOXY HYBRID COMPOSITES FILLED WITH MARBLE POWDER WITH THE TAGUCHI DESIGN AND ARTIFICIAL NEURAL NETWORK
Composites: Mechanics, Computations, Applications: An International Journal, Vol.10, 2019, issue 1
Arun Kumar Rout, Subhrajit Ray, Ashok Kumar Sahoo
TRIBO-MECHANICAL PERFORMANCE OF SILICON CARBIDE-REINFORCED AA6061 METAL MATRIX COMPOSITES USING THE TAGUCHI METHODOLOGY
Composites: Mechanics, Computations, Applications: An International Journal, Vol.8, 2017, issue 1
Arun Kumar Rout, Manoj Kumar, Banabihari Nayak