Effects of interface microstructure on adhesion of polyetheretherketone metallized by titanium cold spray

Article Materials Science, Multidisciplinary

Interlocking metasurfaces

Ophelia Bolmin et al.

Summary: Interlocking metasurfaces (ILMs) are architected arrays of mating features that enable joining of two bodies. Complementary to traditional joining technologies such as bolts, adhesives, and welds, ILMs combine ease of assembly, removal, and reassembly with robust mechanical properties. They act in a quasi-continuous manner across a surface and enable joining of complex surfaces, e.g., lattices. In this perspective, we define an ILM, explore the design domain, evaluate mechanical performance and manufacturability, and discuss their applications in various fields from aerospace to micro-robotics, civil engineering, and prosthetics.

JOURNAL OF MATERIALS SCIENCE (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

Synergistic strengthening in interlocking metasurfaces

Benjamin Young et al.

Summary: Interlocking metasurfaces (ILMs) are a novel class of structural metamaterials that provide non-permanent joints as an alternative to traditional fasteners, welds, or adhesives. The mechanical properties of ILMs are governed by both the shape of individual latching unit cells and the interactions between unit cells, which lead to increased strength and stiffness. Experimental measurements and computational analysis confirm the cross-cell interactions and the unique deformation and failure mechanisms of ILMs, making them a promising joining technology.

MATERIALS & DESIGN (2023)

添加到收藏夹

Article Multidisciplinary Sciences

Insights on metallic particle bonding to thermoplastic polymeric substrates during cold spray

Asghar Heydari Astaraee et al.

Summary: The metallization of polymers using cold spray technology has gained significant attention in recent years. However, there is currently a lack of an effective modeling approach to assess the bonding formation in polymer metallization. This study developed a finite element model to simulate the solid-state deposition of metallic particles on thermoplastic polymeric substrates, taking into account the polymer material properties and substrate thermal history. Experimental coating depositions and single-particle impact tests were conducted for model validation, and the proposed model showed accurate prediction of various impact features.

SCIENTIFIC REPORTS (2022)

添加到收藏夹

Article Materials Science, Coatings & Films

Depositing Aluminum onto PEKK Composites by Cold Spray

P. Feng et al.

Summary: The study used high-pressure cold spray to deposit aluminum onto PEKK composite substrates, achieving dense 7075 and CP Al deposits through various combinations. Thinner deposits were obtained when using 7075 Al particles or He carrier gas due to self-erosion and bond layer erosion. Adhesive strength was found to be dependent on the bonding of initial particle layers fused with the substrate.

JOURNAL OF THERMAL SPRAY TECHNOLOGY (2021)

添加到收藏夹

Article Automation & Control Systems