I need to choose a material for an application that requires
     I need to choose a material for an application that requires it to be an excellent theorem and electric. As such  a material that is:  ceramic  thermoplastic  elastomer_____Thermoset materials have what type of bonding?  A mixture of secondary and covalent bonding  A mixture of  ionic and covalent bonding  A mixture of metallic and secondary bonding.____Adding aluminum to  is considered what type of defect  An interstitial or substitutional defect.  Vacancy defect  An edge dislocation.  How does the grain size impact the strength of a material:  Larger grains are stronger because they have fever grain boundaries, Larger  they have more vacancies that  Larger grains have lower strength because they  grain boundaries.  Larger grains have lower strength because they have more grain boundaries.  In general, HCP structure are more difficult manufacture because  They have high electronegatitvity that impacts their bond strength  they have limited number of independent slip system which reduce  They have extremely high modulus values due to their high bonding energy. 
  
  Solution
1. for thermal conductive material to be choose is Thermoplastics
2. Thermoplatics have secondary and covalent bonding
3. Interstitial or substitution defect
4. Larger grains have lower strength because they have fewer grain boundaries.
5. They have extremely high modulus due to high bonding energy.

