Nano technology METAL MATRIX COMPOSITE

1
METAL MATRIX
COMPOSITE
MILAN DUBEY
CSJMA14001390240

SUBSETS
2
 IMPORTANCE
 INTRODUCTION
 CLASSIFICATION OF MMC
 MANUFACTURING
 PROPERTIES
 APPLICATIONS
 DRAWBACKS
 REFRENCES

NEED OF THIS
SCIENCE
3
 To modify properties of material as per
demand .
 Fulfillment of excessive demand .
 To enhance efficiency .

COMPOSITE
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 Mixture of two or more constituent .
 Natural – bones , teeth , pearl , etc .
 Synthetic – pmc , mmc , cmc .

METAL MATRIX
COMPOSITE
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 It is highly specific .
 Not thermodynamically consistent .

CLASSIFICATION OF
MMC
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Discontinuous
Reinforcement
Continuous
Reinforcement

MANUFACTURING
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PRIMARY PROCESS
• casting
• diffusion bonding
• liquid infiltration
• deposition
• powder processing
•SECONDARY PROCESS
• shaping
• machining
• forming
• brazing

TECHNIQUES
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 SOLID STATE PROCESSING .
 SPRAY FORMING .
 IN SITU PROCESSING .
 LIQUID STATE PROCESING .
• casting or liquid infiltration
• squeeze casting or pressure infiltration.

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SQUEEZE CASTING IN-SITU TECHNIQUE
LIQUID PROCESSING
METHODS

PROPERTIES OF MMC
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0
50
100
150
200
250
300
350
0.1 0.3 0.5 0.7
Young’smodulusE(GPa)
YOUNG’S MODULUS VS FIBER
FRACTION
Axial
Transverse
Volume fraction of reinforcement (Vf)
YOUNG’S MODULUS:
 Measure of
stiffness.
 Anisotropic for
continuous fiber.
 Particle
reinforcement
shows lower
increase.

TOUGHNESS:-
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FIBER DIAMETER (µm) ENERGY ABSORBED (kJ/m²)
100 90
140 150
200 200-300
 Measure of energy absorbed in the process of
fracture
 Particle reinforcement shows greater toughness
than long fiber.

THERMAL CONDUCTIVITY:-
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 Ability to transfer
heat.
 Higher the non-
metallic
reinforcement
volume fraction
lower will be
thermal
conductivity of
MMC. 0
1
2
3
4
5
6
7
300 310 320 330 340
45%
30%
15%
Thermalconductivity(W/mK)
Temperature ( K )

APPLICATION
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 AEROSPACE INDUSTRY .
 AUTOMOBILE INDUSTRY .
 CHEMICAL INDUSTRY .
Carbon reinforced copper have very
good thermal conductivity .
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DRAWBACKS
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 Machining involve diamond tool so
expensive process .
 Lack of analytical modeling method .
 Relatively immature technology .
 Complex fabrication method .

REFRENCES
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 Encyclopedia of chemical technology - kirk
Othmer
 Metal matrix composite - j. Paulo davim
 www.Iosrjournals.Org
 MMC innovation application –
t s srivastan, yuzheng zhang

Nano technology METAL MATRIX COMPOSITE

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