Journal ArticleDOI
A review on the importance of surface coating of micro/nano-mold in micro/nano-molding processes
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TLDR
In this paper, the physical, mechanical and tribological properties of various surface coatings and their impact on the replication efficiency and lifetime of micro/nano-molds that are used in micro-nano hot-embossing and injection molding processes are discussed.Abstract:
Micro/nano hot-embossing and injection molding are two promising manufacturing processes for the mass production of workpieces bearing micro/nanoscale features. However, both the workpiece and micro/nano-mold are susceptive to structural damage due to high thermal stress, adhesion and friction, which occur at the interface between the workpiece and the mold during these processes. Hence, major constraints of micro/nano-molds are mainly attributed to improper replication and their inability to withstand a prolonged sliding surface contact because of high sidewall friction and/or high adhesion. Consequently, there is a need for proper surface coating as it can improve the surface properties of micro/nano-molds such as having a low friction coefficient, low adhesion and low wear rate. This review deals with the physical, mechanical and tribological properties of various surface coatings and their impact on the replication efficiency and lifetime of micro/nano-molds that are used in micro/nano hot-embossing and injection molding processes.read more
Citations
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Frictional Characteristics of Atomically-Thin Sheets
TL;DR: Using friction force microscopy, the nanoscale frictional characteristics of atomically thin sheets of graphene, molybdenum disulfide, niobium diselenide, and hexagonal boron nitride are compared to those of their bulk counterparts, suggesting that the trend arises from the thinner sheets’ increased susceptibility to out-of-plane elastic deformation.
Journal ArticleDOI
Micro-nanostructured polymer surfaces using injection molding: A review
TL;DR: In this article, the influence of processing parameters on the quality of final parts and the precision of final product dimensions in both thermoplastic polymers and rubber materials is discussed and compared.
Journal ArticleDOI
Solvent-aided direct adhesion of a metal/polymer joint using micro/nano hierarchical structures
TL;DR: In this article, a new direct adhesion method is introduced that does not require additional heat management and instead makes use of an organic solvent, which is used to bond micro/nanostructured aluminum and acrylonitrile butadiene styrene.
References
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TL;DR: In this article, a quantitative comparison of the dichlorodimethylsilane (DDMS) monolayer to the octade-cyltrichlorosilane (OTS) self-assembled monolayers (SAM) with respect to the film properties and their effectiveness as anti-stiction coatings for micromechanical structures is presented.
Journal ArticleDOI
Microstructure and wear behavior of metal-containing diamond-like coatings
H. Dimigen,Claus-Peter Klages +1 more
TL;DR: In this paper, the authors attributed the excellent tribological performance of metal-containing a-C:H (Me-C-H) films can be attributed to a combination of favorable properties which are ceramic-like on the one hand, i.e. considerable hardness, and polymer-based on the other, such as high elasticity and low surface energy.
Journal ArticleDOI
Micro hot embossing of thermoplastic polymers: a review
TL;DR: In this article, the authors present a review of the progress of micro hot embossing in terms of polymeric material behavior and corresponding apparatus, challenges and innovations in mold fabrication techniques, and industrial applications.
Journal ArticleDOI
State of the Art on Micromilling of Materials, a Review
TL;DR: In this paper, the authors present the principal aspects related to this technology, with emphasis on the work material requirements, tool materials and geometry, cutting forces and temperature, quality of the finished product, process modelling and monitoring and machine tool requirements.
Journal ArticleDOI
Using self-assembly for the fabrication of nano-scale electronic and photonic devices
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