2018 CAP Congress / Congrès de l'ACP 2018

Session

T4-4 Films, surfaces and composites (DCMMP) | Films, surfaces et composites (DPMCM)

T4-4

12 Jun 2018, 15:30

Dalhousie University

Conveners

T4-4 Films, surfaces and composites (DCMMP) | Films, surfaces et composites (DPMCM)

• David Venus (McMaster University)

2060. Structure and Properties of Exfoliated MoS2-Polyaniline Nanocomposites

Dr Douglas Dahn (Department of Physics, U. Prince Edward Island)

12/06/2018, 15:30

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral (Non-Student) / Orale (non-étudiant(e))

Molybdenum disulfide was produced in an exfoliated state by combining molybdic acid with an excess of thiourea at 500°C under nitrogen. Nanocomposites of the conducting polymer polyaniline (PANI) and exfoliated MoS2 were then synthesized. The nanocomposites with varying percentage by weight of exfoliated MoS2 were characterized using powder X-Ray diffraction, electrical conductivity...

2155. Improving the corrosion resistance of SS 316 (G)

Mr Stefan Juckes (Dalhousie University)

12/06/2018, 15:45

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral (Graduate Student) / Orale (Étudiant(e) du 2e ou 3e cycle)

This talk will look at cost effective and environmentally friendly surface treatments to improve the corrosion resistance of SS 316. Mechanically polished samples were treated by heating in deionized water, a hydrogen peroxide solution, electropolishing and heat treating in an oven. Cyclic voltammetry and optical microscopy were used to measure corrosion on the samples in a 0.9% NaCl solution....

2195. Imaging and Preventing the Corrosion of Nitinol (G)

Mr Garrett LeGallais (Dalhousie University )

12/06/2018, 16:00

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral (Graduate Student) / Orale (Étudiant(e) du 2e ou 3e cycle)

Nitinol (nickel-titanium) alloys have a unique property, superelasticity, which allows the manufacture of minimally invasive self-expanding stents. Nitinol is approximately composed of 50% nickel, which is known to be toxic. Therefore, corrosion resistance is key to the good biocompatibility of this material, especially considering the aggressive environment of the body. We tested the effects...

2200. Wrinkling and Buckling in Freestanding Bilayer Films (G)*

Mr John Niven (McMaster University)

12/06/2018, 16:15

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Periodic wrinkling of a rigid capping layer on a deformable substrate is a ubiquitous example of pattern formation in nature. Many experiments have studied wrinkle formation during the compression of thin rigid films on relatively thick pre-strained elastic substrates. The resulting wrinkling wavelength and amplitude can be predicted by minimizing the bending energy of the rigid film and the...

1967. Unusual resistive hysteresis cycles in VO2 thin films on quartz substrates

Bassel Abdel Samad (Université de Moncton)

12/06/2018, 16:30

Oral (Non-Student) / Orale (non-étudiant(e))

Vanadium oxide (VO2) thin films have been studied extensively because of their thermochromic properties, i.e. reversible optical change as a function of temperature. These reversible optical changes, also accompanied by electrical changes make these films interesting from application point of view. Many applications such as smart windows, sensing devices, variable reflectance mirrors and many...