(Solved): 6. For metal matrix compostes (MMCs). a) What is a common matrix metal used in fiber-and particle- ...

6. For metal matrix compostes (MMCs). a) What is a common matrix metal used in fiber-and particle- reinforced MMCs? b) What material class is typically used as the dispersed phase in MMCs? c) What are the advantages of MMCS when compared to both pure metals and to FMCS? 7. Concrete, a ceramic-ceramic composite, is the second most widely used engineering muterial. (a) What are the dapened and matrix phases of concrete? (b) Describe the chemical composition of the matrix phase. (c) List several acvantages and ceveral limilations of contrete as a structural material. (d) Describe thiree reinforcement strengthening techniques that are commonly used for concrete. 8. Wood, a natural biological composite, is the most widely used engineering materal. (a) What are the fiber and matrix manerials in wood? To what material class de they all belong? (b) What is meant by the term "erain" in wood, and why in wood stitfer and stronger in a direction parallel veris perpendicular to the grain? (c) In what wars do the properties of wood become better and worse when wood is dried? (d) What are the different dasses of wood, and how do their properties compare on averace?