## Treatise on materials science and technology, Volume 4 |

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Page 308

Semidense Materials Sintered powder preforms

generally require pressure levels beyond the practical limits of

to reach full density. Preforms hot

...

Semidense Materials Sintered powder preforms

**forged**at room temperaturegenerally require pressure levels beyond the practical limits of

**forging**machineryto reach full density. Preforms hot

**forged**with low pressures also do not reach full...

Page 312

H. Design of Powder Preforms Section V, F, 2 clearly showed that approximately

50% reduction in height is required to achieve a maximum property level in

fracture ...

H. Design of Powder Preforms Section V, F, 2 clearly showed that approximately

50% reduction in height is required to achieve a maximum property level in

**forged**low alloy steel powders (Fig. 48). It was also shown in Section V, E thatfracture ...

Page 313

49, rf = 50% and the

Df = (//0/Z)0)(l/p1/2)(0.354) (39) Similarly, Eq. (37) can be rearranged to give Hf/

Df = (H0/D0)P0(D0/Dfy (40) The ratio D0/Df at fracture can be found from Fig. 35b

...

49, rf = 50% and the

**forged**disk aspect ratio for maximum properties becomes Hf/Df = (//0/Z)0)(l/p1/2)(0.354) (39) Similarly, Eq. (37) can be rearranged to give Hf/

Df = (H0/D0)P0(D0/Dfy (40) The ratio D0/Df at fracture can be found from Fig. 35b

...

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### Contents

Microstructural Characterization of Thin Films | 2 |

Fundamental Concepts of Diffraction | 4 |

Epitaxial Monocrystalline Films | 10 |

Copyright | |

26 other sections not shown

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### Common terms and phrases

a-sublattice Acta alloys aluminum average beam calculated compaction component compositional dependences compression concentration configurational entropy copper correlation factor crystallites CsCl phases decreases deformation diffraction pattern diffusion coefficient dislocation density disorder parameter effect electron diffraction equations Evans and Flanagan f.c. tetragonal face-centered cubic fiber axis flux forged free energy function Gibbs free energy given increases intermetallic iron powder isostatic jump rate lattice disorder material matrix mechanism nearest neighbor observed obtained occurs oriented partial enthalpy partial entropy Phys plane Poisson ratio polycrystalline probability pure metals random reciprocal lattice relps RHEED shear stress shown in Fig single crystals sintered sintered powder solid solution strengthening solute atoms solute content specimen stacking fault energy stoichiometry stress-strain curve structure sublattice Substituting surface Suzuki TED pattern temperature dependence tetragonal theoretical thermal thermodynamic thermodynamic activities thermodynamic properties thin films tracer jump twin vacancy jumps values variations Vook X-ray yield stress