April 11, 2018 | Michaels - Shoreline
March 14, 2018 | Michael’s at Shoreline
Wednesday, the 14th of March we will be meeting at Michael’s at Shoreline 2960 Shoreline Blvd., Mountain View To hear Dr. Ozgur Keles of San Jose State University speak on Fused Deposition Modeling/Additive Manufacturing and Mechanical Reliability 5:30 pm Social/Networking…6:15 pm Dinner…7:30 pm Speaker Buffet Dinner Cost: ASM Members $30……Students $10……Guests $35…..Talk only - Free Reservations: Contact Al Kwong at (408) 248-1916 or firstname.lastname@example.org or Jack Jew at email@example.com
February 14, 2018 | Michael’s at Shoreline 2960 Shoreline Blvd.
The Laser Interferometer Gravitational-Wave Observatory (LIGO) is a large-scale physics experiment and observatory designed to detect cosmic gravitational waves and to develop gravitational-wave observations as an astronomical tool. Designed using a 1064nm nulling Optical Interferometer with a 4 Km beampath separation in the mirrors mechanical movements as small as 10E-19 can be detected. To achieve these levels of infinitesimal levels of detection a number of material challenges have had to be overcome, resulting in some of the most precise optical mirrors ever produced.
December 11, 2017 | Michael's at Shoreline
History of the Naval Air Station on the San Francisco peninsula as it grew to include NASA and Bay area start up companies
September 13, 2017 | Michael's at Shoreline 2960 Shoreline Blvd
Electrolytic plating or electrodeposition has been used industrially for almost two hundred years. It is vital for modern society yet is often considered a black art rather than the exact science it is. This presentation will demonstrate how, following the work of Humphrey Davy and Michael Faraday in the early 19th century the field has grown to encompass medical device, high temperature gas turbine, electric automobile, deep space, semiconductor and microwave industries. Aqueous plating, molten salt electrolytic diffusion coatings, multi element composite plating and lastly deep eutectic plating systems will be considered. Concerns regarding plating adhesion, stress, thickness measurement and control as well as environmental factors will be addressed. Samples from all fields will be available for inspection together with stereoscopic images.
October 11, 2017 | Michael's at Shoreline 2960 Shoreline Blvd
Wednesday, the 11th of October we will be meeting at Michael's at Shoreline to hear David Knapp of the Lockheed Martin Advanced Technology Center speak on Space Environmental Effects on Materials: Prior to the beginning of the space age with the launch of Sputnik by the Soviet Union in October 1957, most considered space generally empty, however, after six decades of space flight experience, we now know that space is anything but empty. Above the Karman line, the often used height limit of 100km (62.1mi) defining the boundary between Earth's atmosphere and outer space, a variety of environments are encountered that can cause an array of effects on both biological and non-biological materials. The primary environments can be broken down into five major groups: vacuum, neutral, plasma, radiation, and micrometeoroid/space debris. These environments affect materials in different ways and are highly dependent on the altitude above the Earth, the presence and velocity of objects within the environment, and the varying state of the Sun and other celestial bodies. Satellites launched into space need to be engineered to survive these environments, and more specifically, the materials used in the construction of the satellites need to be specifically selected and/or modified for the specific space environment that the satellite will encounter during its lifetime.
April 05 - April 07, 2017 | Michae's at Shoreline
Failure analysis can at times be done with a brief examination depending on the nature of the failure and the level of background information available. On the other hand, some situations required the use of the many tools available for failure analysis such as stereoscopic examination, optical metallography and scanning electron microscopy with energy dispersive X-ray analysis. This talk will cover examples of failure analysis in chemical and ethanol plants, semiconductor manufacturing, and infrastructure.
May 10, 2017 | Michael's at Shoreline 2960 Shoreline Blvd.
Failure Analysis of Composite Structures, a.k.a. the Engineering Process to Answering How and Why Speaker: Cecilia Larrosa Wilson, Ph.D., P.E. Structural Integrity Associates, Inc. The use of carbon fiber reinforced materials is increasing due to their superior properties of strength, stiffness, weight, performance, corrosion resistance, etc. But one of the major challenges with composite materials is that they suffer different damage types that can occur in sequence or simultaneously within different plies. Sponsored by Riga Analytical Lab This meeting will also highlight the senior project posters from the SJSU Materials Science department
February Chapter Meeting: Nanoporosity and the Welcome Guest: Developing Metal-Organic Frameworks for Catalysis, Hydrogen Storage, and Electronic Devices
February 01, 2017 | Michael's at Shoreline 2960 Shoreline Blvd
Metal-Organic Frameworks (MOF)s are crystalline materials in which metal ions or metal-ion clusters are linked by rigid organic molecules, creating a supramolecular network that has permanent nanoporosity. Unwanted "guest" species, which can be solvent molecules or residual reactant, can be removed without pore collapse. Once a MOF is activated, it provides a highly ordered, chemically tailorable structure that can function as a nanoscale catalytic reactor, store gases such as hydrogen, or serve as an active component of electronic devices.
March Chapter Meeting - An Approach to Reliability Assessment of Cold Spray Sputter Targets in PV Manufacturing
February 28 - March 07, 2017 | Michael's at Shoreline
Cold spray has been used to manufacture more than 800 Cu-In-Ga (CIG) sputter targets for deposition of high efficiency photovoltaic (PV) thin films. It is a preferred technique since it enables high deposit purity and transfer of non-equilibrium alloy states to the target material. In this work an integrated approach to reliability assessment of such targets with deposit weight in excess of 50 lb. is undertaken, involving thermal-mechanical characterization of the material in as-deposited condition, characterization of the interface adhesion on cylindrical substrate in as-deposited condition, and developing means to assess target integrity under thermal-mechanical loads during the physical vapor deposition (PVD) sputtering process. Mechanical characterization of cold spray deposited CIG alloy is accomplished through the use of indentation testing and adaptation of Brazilian disc test. A custom lever test was developed to characterize adhesion along the cylindrical interface between the CIG deposit and cylindrical substrate, overcoming limitations of current standards. A cohesive zone model for crack initiation and propagation at the deposit interface is developed and validated using the lever test and later used to simulate potential catastrophic target failure in the PVD process. It is shown that this approach enables reliability assessment of sputter targets and improves robustness