Materials and Surface Characterization Title Facilities at - - PowerPoint PPT Presentation

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Dec 02, 2023 472 likes •643 views

Materials and Surface Characterization Title Facilities at UAHuntsville MTS Program Presentations J J Weimer Associate Professor Chemistry / Chemical & Materials Engineering Materials Outline Outline My Interests Techniques

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J J Weimer Associate Professor Chemistry / Chemical & Materials Engineering

Materials and Surface Characterization Facilities at UAHuntsville

MTS Program Presentations Title

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Materials Outline My Interests Characterization Examples Conclusions

MTS Program Presentations Outline

Techniques Microscopies

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MTS Program Presentations Materials Outline

Materials Science & Technology Nature Properties Performance Preparation

Chemistry Structure Phases Response to an External Stimulus Success / Failure Synthesis Processing

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MTS Program Presentations My Interests

Wolfgang Pauli “God created the volume, but the surface was invented by the devil” What is a surface?

Surface Science & Technology

A thin region between two phases. 1 − 100 layers of atoms or molecules

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MTS Program Presentations My Interests

What are my interests?

Surface Science & Technology Nature Properties Performance Preparation

Chemistry Structure Phases Response to an External Stimulus Success / Failure Synthesis Processing

Characterization

What is in it? How much is in it? How are they bonded? What is their arrangement?

Functionalization

How can we make it?

Collaboration

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MTS Program Presentations My Interests

Surface Science & Technology

Adhesion Thin Films Heterogeneous Catalysis Corrosion Biomaterials Tribology

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MTS Program Presentations Characterization

Techniques Chemistry (Spectroscopies)

Auger Electron ... (AES) Energy Dispersive ... (EDS) Fourier Transform Infrared ... (FTIR) Raman … X-ray Photoelectron ... (XPS)

Characterization

What is in it? How much is in it? How are they bonded?

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MTS Program Presentations Characterization

Techniques Structure (Microscopy)

Optical … Scanning Electron … (SEM) Probe Microscopy (AFM, SPM, …) Scanning Tunneling … (STM)

Structure (Diffraction)

X-ray … (XRD)

Characterization

How is their arrangement?

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MTS Program Presentations Characterization

Microscopies

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MTS Program Presentations Characterization

Dimension 3000 (in startup) Scanning Range Resolution Modes Special Studies

contact tapping phase contrast magnetic force thermal imaging … < 100 microns nearly atomic

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MTS Program Presentations Characterization

Nanoscope III (in planning) Scanning Range Resolution Modes Special Studies

… tunneling … liquid cells < 100 nm atomic!

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MTS Program Presentations Examples

Surface Roughness treatment image size

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MTS Program Presentations Examples

Surface Roughness HTC Coating

— greater surface roughness — dissolves faster

Heat Treated No Thermal Treatment

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MTS Program Presentations Examples

Polymer Agglomeration Problem

Quality of tapping mode image is affected by fluid phase above the surface

PEG Molecular Weight water propanol

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Materials Science & Technology Surface Science & Technology Materials / Surface Characterization

MTS Program Presentations Conclusions

Thank you!

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° Can the fluorescence microscope in Biology Department have any use here? - J Fix ° How much is needed to reconstitute the Nanoscope III? - J Evans ° What about reconstituting the Biorad IR instrument? - K Chittur ° Does any interest exist for using the NMR for solid state? - J Fix ° What is the IR range of the instrument being brought to Chemistry? - J Williams

MTS Program Presentations End Questions