Ultrathin films of co-sputtered CrZrx alloys on polymeric substrates

Evans, Drew; Zuber, Kamil; Murphy, Peter

doi:10.1016/j.surfcoat.2012.03.023

Cited by 12 publications

(4 citation statements)

References 39 publications

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“…The hard‐coated substrates were placed into a custom built magnetron sputtering reaction chamber, heated to a temperature of 85 °C, and then coated with a 135 nm SiO 2 layer and a 60 nm CrZr 0.03 alloy layer . The thicknesses of the transparent layers (hard‐coat and SiO2 layer) were measured using a F20 Thin Film Analyzer by FilmetricsInc, and the thickness of reflective layer (CrZr 0.03 alloy) was measured using the aforementioned AFM.…”

Section: Methodsmentioning

confidence: 99%

“…This study analyses the influence of three different hard‐coated polymeric substrates on the electrical, mechanical, and optical properties of the sputter deposited multilayer thin films of SiO 2 and CrZ 0.03 . This multilayer system has been shown to achieve a highly durable and abrasion resistant reflective surface with observed exotic electrical properties . The different siloxane‐based hard‐coats are shown to influence the microstructure of the sputtered materials, and thus the deposited thin film properties.…”

Section: Introductionmentioning

confidence: 99%

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Growth of Sputtered Nanocomposite Alloys on Polymeric Substrates: The Role of the Substrate's Mechanical Hardness

et al. 2013

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Thin multilayer structures consisting of a nanocomposite CrZr x alloy on SiO 2 are grown by magnetron sputtering onto hard-coated polymeric substrates at 350 K. The grain structure and electrical, optical, and mechanical properties of the nanocomposite alloy were investigated using atomic force microscopy, dc conductivity, spectrophotometry, and nano-scratch testing. Despite the sputtered films being grown in the same deposition run, the grain structure and properties of the thin films were observed to change depending on the siloxane-based hard-coat employed. These studies indicate that in addition to the substrate's roughness, the hardness of the siloxane-based hard-coat correlates well with the changing properties of the sputtered thin films. To rationalize the influence of the substrate hardness, a hypothesis is proposed where the substrate hardness dissipates a portion of the sputtered material's energy upon impact, leading to changes in its residual energy, thus influencing the material's ability to laterally diffuse on the substrate.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Growth of Sputtered Nanocomposite Alloys on Polymeric Substrates: The Role of the Substrate's Mechanical Hardness

et al. 2013

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“…The nanoparticles are presumed to increase the surface hardness and resistance to indentation. The abrasion resistance of thin film nano-composites has been shown to increase as a result of small grain sizes and complex grain boundaries of crystalline materials and a lower atomic packing density of an amorphous phase [16]. For those coatings that contain nanoparticles primarily at the surface, the long-term resistance to scratching is not known.…”

Section: Exterior Painted Class-a Bodymentioning

confidence: 99%

An Overview of the Scratch Resistance of Automotive Coatings: Exterior Clearcoats and Polycarbonate Hardcoats

et al. 2012

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Abstract:The scratch resistance of coatings used on two highly visible automotive applications (automotive bodies and window glazings) were examined and reviewed. Types of damage (scratch vs. mar), the impact on customers, and the causes of scratch events were investigated. Different exterior clearcoat technologies, including UV curable and self-healing formulations were reviewed, including results from nano-and macro-scratch tests. Polycarbonate hardcoat glazings were tested vs. annealed glass samples using a Taber abraser, with the resulting damage analyzed using transmitted haze measurements and optical profilometry. A correlation between the damage seen in glass samples (many smooth, shallow mars) and the best hardcoat samples (fewer, deeper scratches) and the haze measurements was discussed. Nano-scratch results showed similar fracture forces, but measurably improved mar resistance for the hardcoats/glass system compared to exterior clearcoats.

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“…The general applications of nanocomposite thin films are quite varied. Examples of the applications include functional films used in microelectronics, solar cells, automotive mirrors, and light emitting diodes, and protective films used for corrosion resistance or improved hardness . To achieve ultimate control of the thin film's properties, it is important that the chosen fabrication technique has the ability to control both the chemical and physical nature of the film.…”

Section: Introductionmentioning

confidence: 99%

One‐Step Fabrication of Nanocomposite Thin Films of PTFE in SiO_x for Repelling Water

2014

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Two major areas of research over the past decades are thin films and nanocomposite materials. By no means are nanocomposite thin films a new concept, but due to improvements in deposition techniques, their use and production has become more popular. In this vein, the paper herein describes the fabrication of nanocomposite films of PTFE in a glass-like material by introducing PTFE micropowder and siloxane monomer into an atmospheric microwave plasma. Direct analysis of the thin film illustrates that the nanocomposite consists of dispersed PTFE particles in a glass-like matrix, with no observed chemical bonding between the two phases. Such nanocomposite films, and their fast one step deposition process, are easily applied to a range of substrates, both solid and liquid. At low PTFE content a hydrophobic film is fabricated that is robust to abrasive damage, optically transparent, and possesses excellent dynamic water repelling ability. Increasing the PTFE loading transforms the nanocomposite film into a superhydrophobic material. The practical application of such coatings as repellent optical surfaces in dynamic wetting scenarios is demonstrated.

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Ultrathin films of co-sputtered CrZrx alloys on polymeric substrates

Cited by 12 publications

References 39 publications

Growth of Sputtered Nanocomposite Alloys on Polymeric Substrates: The Role of the Substrate's Mechanical Hardness

Growth of Sputtered Nanocomposite Alloys on Polymeric Substrates: The Role of the Substrate's Mechanical Hardness

An Overview of the Scratch Resistance of Automotive Coatings: Exterior Clearcoats and Polycarbonate Hardcoats

One‐Step Fabrication of Nanocomposite Thin Films of PTFE in SiO_x for Repelling Water

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Ultrathin films of co-sputtered CrZrx alloys on polymeric substrates

Cited by 12 publications

References 39 publications

Growth of Sputtered Nanocomposite Alloys on Polymeric Substrates: The Role of the Substrate's Mechanical Hardness

Growth of Sputtered Nanocomposite Alloys on Polymeric Substrates: The Role of the Substrate's Mechanical Hardness

An Overview of the Scratch Resistance of Automotive Coatings: Exterior Clearcoats and Polycarbonate Hardcoats

One‐Step Fabrication of Nanocomposite Thin Films of PTFE in SiOx for Repelling Water

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Product

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One‐Step Fabrication of Nanocomposite Thin Films of PTFE in SiO_x for Repelling Water