jagomart
digital resources
picture1_Strength Of Materials Ppt 78543 | Chapter 8


 138x       Filetype PPTX       File size 0.60 MB       Source: irzaidan.files.wordpress.com


File: Strength Of Materials Ppt 78543 | Chapter 8
content introduction ceramic matrix nanocomposites type of cmn processing metal matrix nanocomposites type of mmn processing introduction of nanocomposites nanocomposites solid structures with nanometer scale dimensional repeat distances between the ...

icon picture PPTX Filetype Power Point PPTX | Posted on 06 Sep 2022 | 3 years ago
Partial capture of text on file.
                             Content
    Introduction
    Ceramic Matrix Nanocomposites
     • Type of CMN
     • Processing
    Metal Matrix Nanocomposites
     • Type of MMN
     • Processing
       Introduction of Nanocomposites
     Nanocomposites- solid structures with 
     nanometer-scale dimensional repeat 
     distances between the different phases that 
     constitute the structure
     Typically consist of:
      • Inorganic(host) solid containing an organic component 
       or vice versa
      • OR consist of 2 or more inorganic/organic phases in 
       some combinatorial form. Constraint- at least one of 
       the phases or features be in nano size
      • Extreme example: can be porous media, colloids, gels 
       and copolymers
      Introduction of Nanocomposites
    Core concept:
     • Combination of nano-dimensional phases with 
      distinct differences in structure, chemistry and 
      properties.
    Nanocomposites- can demonstrate 
     different mechanical, electrical, optical, 
     electrochemical, catalytic, and structural 
     properties than individual component
    Multifunctional behavior often more than 
     the sum of individual components.
            Why Nanocomposites?
     Efforts to develop high-performance ceramics 
     for engineering applications:
      • Gas turbines
      • Aerospace materials
      • Automobiles and etc.
     Conventional processed ceramics pose many 
     unsolved problems:
      • Relatively low fracture toughness & strength
      • Degradation mechanical properties at high T
      • Poor resistance to creep, fatigue and thermal shock
     Attempts to solve  incorporating second 
     phases
                 Second phases
    Either:
    • Particulates
    • Platelets
    • Whiskers
    • Fibers
    Disappointment in the use of micron-size 
    range fillers
    To solve the problem  nano-size fillers
    • Passive control of microstructures by 
     incorporating nanometer-size second-phase 
     dispersions into ceramic matrices.
The words contained in this file might help you see if this file matches what you are looking for:

...Content introduction ceramic matrix nanocomposites type of cmn processing metal mmn solid structures with nanometer scale dimensional repeat distances between the different phases that constitute structure typically consist inorganic host containing an organic component or vice versa more in some combinatorial form constraint at least one features be nano size extreme example can porous media colloids gels and copolymers core concept combination distinct differences chemistry properties demonstrate mechanical electrical optical electrochemical catalytic structural than individual multifunctional behavior often sum components why efforts to develop high performance ceramics for engineering applications gas turbines aerospace materials automobiles etc conventional processed pose many unsolved problems relatively low fracture toughness strength degradation t poor resistance creep fatigue thermal shock attempts solve incorporating second either particulates platelets whiskers fibers disapp...

no reviews yet
Please Login to review.