A sintered structure is formed from 20 um powders. After sintering to 92% density, the pores are 1 um as the compact enters final-sage sintering. Sintering in argon results in less than full density. Predict the final pore size and density. What alternative might be considered for reaching full density

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise