tailieunhanh - The Coming of Materials Science Episode 15

Tham khảo tài liệu 'the coming of materials science episode 15', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | PROPERTIES articulating this paradigm and employing it to contribute to society . Others prefer to make this little diagram more complicated thus Shi 1999 a veteran Chinese materials scientist is insistent that composition is an equally important variable distinct from structure processing should be linked with synthesis and at the heart of the whole enterprise he places theory and design of materials and processing clearly including computer simulation. His view of things is shown in Figure b . One should not be perturbed by different experts preferences for different kinds of polyhedra after all these are no more than a visual aid to understanding. The key thing is that different aspects are intimately related. in these figures every point is linked to every other point. Each of these aspects whether they be divided into four or six categories needs a familiarity with some of the classical disciplines such as physics chemistry physical chemistry and with subsidiary not-quite-independent sciences such as rheology and colloid science. SYNTHESIS PROCESSING 540 The Coming of Materials Science PERFORMANCE STRUCTURE COMPOSITION Performance Figure . a The four elements of materials science and engineering after Flemings b The six elements of materials science and engineering after Shi . Property Environment affected Structure Synthesis processing Theory and materials and processing design Composition Epilogue 541 While I entirely agree with both Flemings and Shi about the crucial importance of the components in their diagrams I persist in my conviction that microstructure is the central component that best distinguishes MSE from other disciplines each chapter of this book demonstrates this centrality. The other components in the diagrams themselves have microstructural features thus self-assembled materials a part of processing synthesis have carefully controlled microstructure and composition because of segregation varies significantly from point to point - .

33    40    1    26-10-2021
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