What is in situ composite?
What is in situ composite?
In-situ composites are multiphase materials where the reinforcing phase is synthesized within the matrix during composite fabrication.
What are the various fabrication methods of metal matrix composites?
The main fabrication methods for solid state processing of metal matrix composites are powder blending and consolidation, and physical vapor deposition. dispersion-strengthening of the metal matrix composites . This method is usually used for the processing of aluminum and magnesium metal matrix composites.
How are MMC manufactured?
Stir casting technique is liquid state technique of developing the MMCs, in which the desired reinforcement particles are added or mixed to the molten metal matrix by means of mechanical stirring. Reinforcement materials are generally taken in the form of powder.
What is in situ fabrication?
In situ fabrication of Metal Matrix Composite is a process, in which dispersed (reinforcing) phase is formed in the matrix as a result of precipitation from the melt during its cooling and Solidification.
What is smart composite?
A smart composite structure is a structure made of composite material in which smart materials are integrated to make it functional. The results obtained show that this approach makes it possible to identify new fields of application, which have not yet been considered by the smart composite community.
What is the meaning of the Latin term in situ?
in situ. / Latin (ɪn ˈsɪtjuː) / adverb, adjective (postpositive) in the natural, original, or appropriate position.
What is MMC explain their mechanical properties?
Metal matrix composites are advanced engineered materials capable of displaying improved strength, wear and creep resistance, excellent damping and reduced thermal expansion making them suitable for a wide range of applications in transportation, cutting tools, consumer electronics, defense, space, aerospace, marine.
What is reinforcement in MMC?
The reinforcement and metallic matrix are required to be chemically distinct to call as metal matrix composite (MMC). The reinforcement particles are mechanically bonded to the metallic matrix in which they are embedded. The interface is the key feature of the MMC which play a crucial role in dictating the properties.
What is the expansion of MMC?
MMC (Metal Matrix Composites) is a new material that excels in terms of its density, thermal conductivity, Young’s modulus, coefficient of thermal expansion, and strength.
What is the difference between smart and composite materials?
Work on smart composites has focused on the incorporation of a functional material or device in a matrix material for enhancing the smartness or durability, while that on smart materials has studied materials (e.g. piezoelectric) used for making relevant devices.
What is in situ condition?
Term. conditions where genetic resources exist within ecosystems and natural habitats, and, in the case of domesticated or cultivated species, in the surroundings where they have developed their distinctive properties. [
What are the characteristics of MMC?
Compared to monolithic metals, MMCs have:
- Higher strength-to-density ratios.
- Higher stiffness-to-density ratios.
- Better fatigue resistance.
- Better elevated temperature properties. — Higher strength. — Lower creep rate.
- Lower coefficients of thermal expansion.
- Better wear resistance.
What is the difference between smart and modern material?
Smart materials are ‘reactive materials’. Their properties can be changed by exposure to stimuli, such as electric and magnetic fields, stress, moisture and temperature. Modern materials are developed through the invention of new or improved processes, for example as a result of manmade materials/ingredients.