Editor: Eng. Mohamadreza Govahi Mentor: Dr. Ehsan Borhani Date of Presentation: Apr 2016, Semnan PN Univeristy *Contents ~Introduction to MMCs ~Introduction to Aluminum MMCs (AMMCs) ~Ceramic Reinforcements in AMMCs ~Types and Morphology of Reinforcements ~Aluminum Nano-composites ~Producing Methods ~Comparison in Different Procedures ~Reviews of some Experiments And Researches

2.  Introduction to MMCs
 Introduction to Aluminum MMCs (AMMCs)
 Ceramic Reinforcements in AMMCs
 Types and Morphology of Reinforcements
 Aluminum Nano-composites
 Producing Methods
 Comparison in Different Procedures.
 Reviews of some Experiments And Researches

3.  COMPOSITE MATERIAL is a macroscopic
combination of two or more distinct
materials, having a recognizable interface
between them.
 Matrix
 Reinforcements

4.  Metal Matrix Composites (MMCs)
 Ceramic Matrix Composites (CMCs)
 Polymer Matrix Composites (PMCs)

5.  Matrix : Al, Ti, Cu, Ni, Fe ect…
 Reinforcements: Carbides, Oxides, Nitrides,
Borides, Mixture, C, B.
Source: http://sp3cuttingtools.com/applications/silicon-
aluminum.html

6.  Major weight savings due to higher strength-
to-weight ratio
 Great dimensional stability
 Higher elevated temperature stability, i.e.,
creep resistance
 Significantly improved cyclic fatigue
characteristics

7.  Continuous Fibers
 Discontinuous Fibers
 Whiskers
 Particles
 Sheet, Laminates, Braids..
Source: N,Chawla- K.Chawla, Metal Matrix Composites, Springer,2006.

9.  Aluminum has brilliant Properties:
 Low Density (2.7g/cm3)
 High Strength / Weight Ratio
 High Corrosion Resistance
 Workability
 Low Melt Point
 Availability
 ect
Source: Brian Cantor,Fionn Dunne,Ian
Stone-Metal and Ceramic Matrix
Composites- IOP Publishing Ltd 2004

10.  High Strength/ Weight Ratio
 High Temperature Properties
 Better Wear Resistance
 Aerospace
 Structural
 Wear
 Transportations
 Automotive
 Military
 Ect..

11.  Reinforcements:
 Dimensions: 10nm- 100nm
 Morphology: Particles
 Materials: Ceramics (Al2O3, SiC, B4C,TiB2,
ZrO2 ..)
Source: S. Alalhessabi-S.A. Manafi- E. Borhani, The Structural
and Mechanical Properties of Al-2.5%wt. B4C Metal Matrix
Nano-composite Fabricated by the Mechanical Alloying,
Mechanics of Advanced Composite Structures 2 (2015) 39-44

12.  Good Distribution of Reinforcements
 Isotropic Properties
 Better Mechanical Properties
Source:
‫عليزاده‬ ‫علي‬-‫عليرضا‬‫عبدالهي‬‫و‬‫ريزساختار‬ ‫مقايسه‬ ،‫نصيري‬ ‫زينب‬
‫مكانيكي‬ ‫خواص‬ ‫و‬‫نانوكامپوزيت‬Al-B4C
‫روشهاي‬ ‫به‬ ‫شده‬ ‫توليد‬‫ريخته‬‫گري‬‫متالورژي‬ ،‫گردابي‬
‫آلياژسازي‬ ‫و‬ ‫پودر‬،‫مكانيكي‬‫نوين‬ ‫فرآيندهاي‬ ‫پژوهشي‬ ‫علمي‬ ‫فصلنامه‬
‫مهندسي‬ ‫در‬‫شماره‬ ،‫مواد‬1،1393.

13.  High strength
 High Melting Point (2450 C)
 Low density (2.52 g/cm3)
 Extremely high hardness (3700 HV) (the third
hardest material after diamond and boron
nitride)
 High Modulus (445 Gpa)
 Good chemical & thermal stability
 Neutron absorption (Nuclear Industries)
 Matrixes (Al 1XXX, 2024, 5083,6061, 7075,
ect..)

14.  Powder Metallurgy (PM)
 Mechanical Alloying (MA)
 Liquid Phase Process (Stir Casting)
 Semi-Solid Phase Process
 Friction Stir Welding (FSW)
Solid state process

15. Source:
‫عليزاده‬ ‫علي‬-‫عليرضا‬‫عبدالهي‬‫و‬‫زينب‬
‫خواص‬ ‫و‬ ‫ريزساختار‬ ‫مقايسه‬ ،‫نصيري‬
‫مكانيكي‬‫نانوكامپوزيت‬Al-B4C
‫روشهاي‬ ‫به‬ ‫شده‬ ‫توليد‬‫ريخته‬‫گري‬
‫متالورژي‬ ،‫گردابي‬
‫آلياژسازي‬ ‫و‬ ‫پودر‬،‫مكانيكي‬‫فصلنامه‬
‫در‬ ‫نوين‬ ‫فرآيندهاي‬ ‫پژوهشي‬ ‫علمي‬
‫مهندسي‬‫شماره‬ ،‫مواد‬1،1393.

16. Source:
‫عليزاده‬ ‫علي‬-‫عليرضا‬‫عبدالهي‬‫و‬‫مكانيكي‬ ‫خواص‬ ‫و‬ ‫ريزساختار‬ ‫مقايسه‬ ،‫نصيري‬ ‫زينب‬‫نانوكامپوزيت‬Al-B4C
‫روشهاي‬ ‫به‬ ‫شده‬ ‫توليد‬‫ريخته‬‫گري‬‫متالورژي‬ ،‫گردابي‬
‫آلياژسازي‬ ‫و‬ ‫پودر‬،‫مكانيكي‬‫مهندسي‬ ‫در‬ ‫نوين‬ ‫فرآيندهاي‬ ‫پژوهشي‬ ‫علمي‬ ‫فصلنامه‬‫شماره‬ ،‫مواد‬1،1393.

17.  Increasing Milling Time
 Decreasing Size
 Nano Size
Source: S.
Alalhessabi-S.A.
Manafi- E.
Borhani, The
Structural and
Mechanical
Properties of Al-
2.5%wt. B4C Metal
Matrix Nano-
composite
Fabricated by the
Mechanical
Alloying,
Mechanics of
Advanced
Composite
Structures 2
(2015) 39-44

18. Source: S. Alalhessabi-S.A. Manafi- E.
Borhani, The Structural and Mechanical
Properties of Al-2.5%wt. B4C Metal
Matrix Nano-composite Fabricated by the
Mechanical Alloying, Mechanics of
Advanced Composite Structures 2 (2015)
39-44

19. Source: S. Alalhessabi-S.A
Manafi- E. Borhani, The
Structural and Mechanical
Properties of Al-2.5%wt.
B4C Metal Matrix Nano-
composite Fabricated by
the Mechanical Alloying,
Mechanics of Advanced
Composite Structures 2
(2015) 39-44

20. Source: M. Khakbiz- F.
Akhlaghi,Synthesis and structural
characterization of Al–B4C nano-
composite powders
by mechanical alloying,Elsevier,
Journal of Alloys and Compounds
479 (2009) 334–341

21. Source:Yusof Abdullah, et al-
Al/B4C Composites with 5 And 10 wt% Reinforcement Content
Prepared By Powder Metallurgy -
JOURNAL of NUCLEAR And Related TECHNOLOGIES, Volume 9, No. 1,
June, 2012.

22. Source:Yusof Abdullah, et al-
Al/B4C Composites with 5 And 10 wt% Reinforcement Content Prepared By Powder
Metallurgy -
JOURNAL of NUCLEAR And Related TECHNOLOGIES, Volume 9, No. 1, June, 2012.

23. Source: M. Firouzi, M. R. Nami , A. R. Zandi-
Fabrication and evaluation of mechanical properties of
Al-5vol. %B4C, Al-5vol. %SIC,
Al- 5vol. %SIO2 nanocomposite powders produced by
mechanical milling-Proceedings of the 4th
International Conference on Nanostructures (ICNS4),
1519-1521

24. Source: M. Firouzi, M. R. Nami , A. R. Zandi-Fabrication
and evaluation of mechanical properties of Al-5vol.
%B4C, Al-5vol. %SIC,
Al- 5vol. %SIO2 nanocomposite powders produced by
mechanical milling-Proceedings of the 4th International
Conference on Nanostructures (ICNS4), 1519-1521

25.  Al-B4C is a Useful Nanocomposite in Aerospace,
Transportation, Automotive, Military, Wear,
Structural ect..
 Mechanical Alloying is the Best Process for
Producing Al-B4C Nano-composites.
 Good Distribution of Reinforcement Particle is the
Most Advantage of MA Process
 Increasing Milling Time would Decrease Grain Size
of Composite and Reaching Nano-Composite with
Very Better Performance
 Al-B4C Nano-Composite is Harder and have More
Strength than Al-SiC, Al-SiO2.

26. 1. N,Chawla- K.Chawla, Metal Matrix Composites, Springer,2006.
2. Brian Cantor,Fionn Dunne,Ian Stone-Metal and Ceramic Matrix Composites- IOP Publishing
Ltd 2004.
3. S. Alalhessabi-S.A. Manafi- E. Borhani, The Structural and Mechanical Properties of Al-2.5%wt.
B4C Metal Matrix Nano-composite Fabricated by the Mechanical Alloying, Mechanics of
Advanced Composite Structures 2 (2015) 39-44.
.4‫عليزاده‬ ‫علي‬-‫عبدالهي‬ ‫عليرضا‬‫نانوكامپوزيت‬ ‫مكانيكي‬ ‫خواص‬ ‫و‬ ‫ريزساختار‬ ‫مقايسه‬ ،‫نصيري‬ ‫زينب‬ ‫و‬Al-B4C‫توليد‬‫ريخته‬ ‫روشهاي‬ ‫به‬ ‫شده‬
،‫گردابي‬ ‫گري‬‫متالورژي‬‫پودر‬‫شماره‬ ،‫مواد‬ ‫مهندسي‬ ‫در‬ ‫نوين‬ ‫فرآيندهاي‬ ‫پژوهشي‬ ‫علمي‬ ‫فصلنامه‬ ،‫مكانيكي‬ ‫آلياژسازي‬ ‫و‬1،1393.
5. Morteza Alizadeh, et al, Properties of high specific strength Al–4 wt.% Al2O3/B4C nano-
composite produced by accumulative roll bonding process, Elsevier, Materials and Design 50
(2013) 427–432.
6. M. Khakbiz- F. Akhlaghi,Synthesis and structural characterization of Al–B4C nano-composite
powders by mechanical alloying,Elsevier, Journal of Alloys and Compounds 479 (2009) 334–
341.
7. Yusof Abdullah, et al-Al/B4C Composites with 5 And 10 wt% Reinforcement Content Prepared
By Powder Metallurgy -JOURNAL of NUCLEAR And Related TECHNOLOGIES, Volume 9, No. 1,
June, 2012.
8. M. Firouzi, M. R. Nami , A. R. Zandi-Fabrication and evaluation of mechanical properties of Al-
5vol. %B4C, Al-5vol. %SIC,Al- 5vol. %SIO2 nanocomposite powders produced by mechanical
milling-Proceedings of the 4th International Conference on Nanostructures (ICNS4), 1519-
1521.
.9‫ن‬.‫چاوال‬ ‫چاوال؛ک‬-‫فلزی‬ ‫زمينه‬ ‫کامپوزيتهای‬-‫جاللی‬ ‫ميثم‬ ،‫مرآتيان‬ ‫محمود‬ ‫ترجمه‬-‫اصفهان‬ ‫دانشگاهی‬ ‫جهاد‬-1393.
.10‫براون‬ ‫شادلر؛‬ ‫آجايان؛‬-‫نانوکامپوزيت‬ ‫فناوذب‬ ‫و‬ ‫علوم‬-‫پورسنگ،وزيری‬ ،‫کفاشی‬ ‫بابک‬ ‫ترجمه‬-‫تهران‬ ‫دانشگاه‬ ‫انتشارات‬-1389.

27. Thank You
For Your
Consideration