ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Collection
Years
  • 1
    Publication Date: 2017-11-29
    Description: Materials, Vol. 10, Pages 1368: Ceramic-Based 4D Components: Additive Manufacturing (AM) of Ceramic-Based Functionally Graded Materials (FGM) by Thermoplastic 3D Printing (T3DP) Materials doi: 10.3390/ma10121368 Authors: Uwe Scheithauer Steven Weingarten Robert Johne Eric Schwarzer Johannes Abel Hans-Jürgen Richter Tassilo Moritz Alexander Michaelis In our study, we investigated the additive manufacturing (AM) of ceramic-based functionally graded materials (FGM) by the direct AM technology thermoplastic 3D printing (T3DP). Zirconia components with varying microstructures were additively manufactured by using thermoplastic suspensions with different contents of pore-forming agents (PFA), which were co-sintered defect-free. Different materials were investigated concerning their suitability as PFA for the T3DP process. Diverse zirconia-based suspensions were prepared and used for the AM of single- and multi-material test components. All of the samples were sintered defect-free, and in the end, we could realize a brick wall-like component consisting of dense (<1% porosity) and porous (approx. 5% porosity) zirconia areas to combine different properties in one component. T3DP opens the door to the AM of further ceramic-based 4D components, such as multi-color, multi-material, or especially, multi-functional components.
    Electronic ISSN: 1996-1944
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by MDPI Publishing
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2018-02-01
    Description: This paper addresses two conflicting views in the 1950s and 1960s about the inflation-unemployment tradeoff as given by the Phillips curve. Many economists at this time emphasized the issue of a seemingly unavoidable inflationary pressure at or even below full employment. In contrast, Milton Friedman was convinced that full employment and price stability are not conflicting policy objectives. This dividing line between the two camps ultimately rested on fundamentally different views about the inflationary process: For economists of the 1950s and 1960s cost-push forces are responsible for the apparent conflict between price stability and full employment. On the other hand, Friedman, who regarded inflation to be an exclusively monetary phenomenon, rejected the notion of ongoing inflationary cost-push pressures at full employment. Besides his emphasis on the full adjustment of inflation expectations, this rejection of cost-push theories of inflation, which implied a decoupling of the two previously perceived incompatible policy objectives, was the other important element in Friedman's attack on the Phillips curve tradeoff in his 1967 presidential address to the American Economic Association.
    Print ISSN: 0895-3309
    Electronic ISSN: 1944-7965
    Topics: Economics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...