Dr. John A. Shields, Jr.


John has over 35 years of experience in refractory metals, in many different areas:
• Research & development
• Process development and engineering
• Sales & marketing
• Technical service

He is active in multiple professional societies:
• ASM International, having held office at both local chapter and national level, authored several ASM Handbook sections on molybdenum metal and its alloys, and served as a member of Advanced Materials & Processes Editorial Board
• MPIF/APMI, as a long-term member of the Program Committee for annual MPIF PM conference, co-chair of 2008 MPIF International Conference on Tungsten, Refractory, and Hard Metals, and member of the MPIF Technical Board and Publications Committee
• ASTM International, as a member of Committees F01 on Electronics, B09 on Metal Powders and Metal Powder Products, and B10 on Reactive and Refractory Metals, as well as Chair of Subcommittee B10.04 on Molybdenum and Tungsten
• TMS, where he has been a long-time member, past Vice Chair and past Chair of the Refractory Metals Committee, and a co-organizer for several refractory metal seminars
• AWS, for whom he authored sections of the Welding Handbook dealing with molybdenum and its alloys

He has also contributed to several scholarly activities, as a member of the Editorial Board of International Journal of Refractory Metals and Hard Materials, a reviewer for Metallurgical Transactions, and an author or co-author of more than 40 publications and 1 patent

John is the recipient of numerous awards from his peers, recognizing his technical and leadership abilities:

• ASM International: Fellow (1994)
• Cleveland Engineering Week: Engineer of the Year (2002)
• ASM International Cleveland Chapter: Award of Distinction (2004)
• Cleveland Technical Societies Council: Robert B. Cummings Distinguished Leadership Award (2006)
• TMS Structural Materials Division: Distinguished Service Award (2009)
• Metal Powder Industries Federation: Distinguished Service to Powder Metallurgy Award (2009)

Among his accomplishments solving difficult problems in a variety of areas are:

• Led a cross-functional team that designed and qualified a process to produce MP35N alloy plate for a critical seal in the NASA Space Shuttle main engine hydrogen pump. The team created a manufacturing control system meeting NASA requirements for manned space flight applications, and produced material exceeding the specified requirements
• Established stable processes to produce tungsten heavy alloy parts at a start-up plant in China.
• Identified the source of ultrasonic indications in refractory metal plate material, revealing that conventional wisdom about the defects was incorrect. The resulting process changes eliminated costly scrap in an expensive product
• Designed a process to produce large low-cost, high-quality sintered refractory metal parts for a client, and demonstrated a production-scale process within six months of starting the project
• Designed a new alloy for a client, resulting in product life an order of magnitude greater than the standard alloy
• Identified process changes that allowed a client to manufacture product to a rigorous grain-size standard that they could not previously meet

John holds a BS degree in Metallurgy, and MS and PhD degrees in Materials Science from Case Western Reserve University (Cleveland OH, USA).