The Use of Color Indicators for Plasma Enhanced Chemical Vapor Deposition (PECVD) Films

1. The Use of Color Indicators for Plasma Enhanced Chemical Vapor Deposition (PECVD) Films Brian Lopas Physics TeacherNavasota High School, Navasota ISDDavid Staack, Ph.D.Assistant Professor Department of Mechanical Engineering

2. Plasma Engineering and Diagnostics Laboratory Dr. David Staack Tsung-Chan “Cliff” Tsai

3. - - - - - - - - - - - - - - - - - - - + + + + + + + + + + + Power Supply MMA Plasma Enhanced Chemical Vapor Deposition (PECVD) HV Floating substrate Electrode Film (PMMA) Helium Dielectric tube Plasma jet * * * * * * * * * • Characteristics: • Non-thermal plasma • Adhesive to varies surfaces • Sterilizer

4. Applications • Suitable for live tissues • Polymeric bandage on wounds • Sterilizes infected area

5. Setup Bubbler (MMA) Plasma Jet Flow Controllers Power Supply Multimeter Substrate (film produced here)

6. 30 C ° Equipment Setup 100 C ° Modified Setup with temperature controller Thermocouple Methyl Red (MR) Cartridge heater Temperaturecontroller He + MR He Oscilloscope He Power Supply (HV) Flow controller He + MR + MMA Glass tube 1000:1 Probe He + MMA He Resistor Floating-electrodeDBD jet Bubbler MMA Thermocouple

7. Classroom ProjectPre-AP PhysicsUnit: Conservation of energy

8. Core Elements Work (Ex. Lifting a tank above your head; launching an arrow from a bow) Power (Ex. “Hulk smash”, stopping an engine turbine manually in under 10 seconds) Courtesy of nilgeek.wordpress.com Conservation of Energy (Ex. Converting lightning to mechanical energy; using arc reactor energy to kinetic energy in laser beams)

9. Physics TEKS • (6)  Science concepts. The student knows that changes occur within a physical system and applies the laws of conservation of energy and momentum. The student is expected to: • (A)  investigate and calculate quantities using the work-energy theoremin various situations; (Readiness Standard) • (B)  investigate examples of kinetic and potential energy and their transformations; (Readiness Standard) • (C)  calculate the mechanical energy of, power generated within, impulse applied to, and momentum of a physical system; (Readiness Standard) • (D)  demonstrate and apply the laws of conservation of energyand conservation of momentum in one dimension; (Readiness Standard)

10. Day 1: • Prior to day 1 a pre-test will be administered • Review unit concepts • Work • Power • Energy • Show engineering video clip(s)

11. Day 2: [D-day (Discussion day)] • Engineering design; • Define engineering; • “Minds of the Round Table” Courtesy of Project Lead The Way The Minds of the Round Table Courtesy of dailyspeculations.com

12. Day 3: • Plasma demonstration; • Demonstrate shape memory material; • Introduce the students to the engineering design project Courtesy of grand-illusions.com

13. Day 4: • Explanation of goals and procedures for the engineering design project; • Assignment of lab teams/partners; • Student exploration of materials and lab; • Students begin the engineering design project

14. Days 5 and 6 • Day 5: • Students continue working on the lab; • Students will be directing the labs themselves with the teacher observing and guiding as needed. • Day 6: • Debrief the project; • Administer the post-test Courtesy of d.lib.ncsu.edu

15. Sample Questions 1. A mass of 20 kg is moved vertically upwards through a distance of 9 m. If the gravitational acceleration is 9.8 m s-2, what is the work done against gravity? A. 88.2 J B. 180 J C. 1764 J D. 196 J 2. What type of energy is used when the mass is stationary at the bottom of its path, the spring is extended fully? A. kinetic energy B. potential energy C. dark energy D. no energy

16. Acknowledgements • Dr. David Staack • Tsung-Chan “Cliff” Tsai • Texas A&M University • Mechanical Engineering Department • Plasma Engineering and Diagnostics Laboratory • National Science Foundation (NSF) • Enrichment Experience in Engineering (E3)

17. Questions?