This republished 1944 AES convention paper presents an historic perspective of the early days of plastics in surface finishing - using them and plating on them, in the waning years of World War II. The discussion reviews the uses of plastics in plating equipment and processing at that time, as well as the coating of the plastics themselves, with accompanying application photos. You will note that today’s conventional plating-on-plastics processes lay far in the future. Surprisingly, CVD processes are discussed.
The National Association for Surface Finishing (NASF) offers its public policy update for January 2021 to the finishing industry.
NASF’s Plating Essentials course will provide an overview of critical finishing subjects which will be covered more in-depth during the CEF course.
Registration ends November 20 for NASF's web-based aluminum finishing course discussing subjects like anodizing, bright dips and chemical milling. The course will take place during the first four weeks of December.
This month’s NASF content includes two papers, one discussing a new electrodeposition pretreatment process and the other updating readers on ongoing research at Wayne State University.
NASF/AESF Foundation Research Project #121: Development of a Sustainability Metrics System and a Technical Solution Method for Sustainable Metal Finishing: 2nd Quarterly Report
This report covers the second quarter of project work (July-September 2020) on this project at Wayne State University in Detroit. The objective is to help metal finishing plants to conduct a self-managed sustainability assessment and identify technical solutions for sustainability performance improvement. The reader is invited to contact Dr. Huang in identifying plating shops willing to participate in this program.
This paper discusses a novel pretreatment process for direct electrodeposition nickel-phosphorus and nickel from commercial electrolytes onto aluminum alloy (T6061) surfaces without the need for zincate or stannate pretreatment processes. These coating properties are compared to conventional commercially applied electroless (NiP) using conventional pretreatment processes.
The National Association for Surface Finishing (NASF) is accepting technical paper and presentation abstracts for SUR/FIN 2021 until December 11, 2020.
Managing Editor, Products Finishing
NASF is hosting a web-based course on chromium plating skills the first four Tuesdays and Wednesdays in November for operators, supervisors and sales personnel. Registration ends October 20th.
Dr. Jude M. Runge is the 2020 recipient of the NASF William Blum Scientific Achievement Award. The COVID-19 crisis and the cancellation of SUR/FIN 2020 have affected the timing of the formal award and her delivery of the William Blum Lecture. To honor her properly now, it is timely to publish one of her earlier papers, showing the caliber of her work. Here, she notes that nanomaterials, nanotechnology and nanoprocessing are the marketing buzzwords for the 21st century, stressing that, after all, conventional anodizing processes yield a nanoscale finish. Armed with this knowledge, the ease, reliability and reproducibility of the anodic finish enable insights into new applications.
From time to time, it has been our intent to present seminal papers from past issues of NASF/AESF journals that are of such significance that, decades later, they bear another look. As Einstein is associated with relativity, Drs. Conway and Bockris are synonymous with theoretical electrochemistry. This paper is in large measure, the result of Project #16, and, as the authors modestly describe it, is “an attempt to describe to the electroplater who understands the basic ideas of electrochemistry, what is being done in research on fundamental electrode processes.” This “attempt” did rather well.
Originally published as S.J. Muckett, et al., Plating and Surface Finishing, 73 (1), 44-51 (1986), this paper was awarded the 1987 AESF Gold Medal for Best Paper published in Plating and Surface Finishing in 1986. With the passage of time, Pb-containing solders have been found to have issues regarding toxicity and health. Nonetheless, the work, methodology and results discussed here remain valuable from a research standpoint.
Charlie Cook, non-partisan political analyst, will speak at a special NASF Washington Forum session about the 2020 U.S. Election on September 10.
NASF and the AESF Foundation are offering a web-based plating essentials course that provides an overview of critical finishing subjects.
This study investigated the addition of Cirrus Alumina Dopant™, a nanoparticle additive, to a variety of low phosphorus electroless nickel baths to evaluate the performance of the resulting nanocomposite coating as a potential replacement for hard chromium. The results offer a vbersatile substitute for hard chromium in a broad range of applications.
Each year, the National Association for Surface Finishing (NASF) recognizes members who stand out amongst their peers for their contributions to the finishing industry on the local and national levels.
Electro-codeposition of MCrAlY Coatings for Advanced Gas Turbine Applications - 10th Quarterly Research Report
NASF funded research seeking a sulfur-free plating solution for electro-codeposition of (Ni,Co)-CrAlY composite coatings.
The July 28 webinar will discuss the EPA’s current review of per- and polyfluoroalkyl substance (PFAS) compounds.
Over many years, well-regarded AESF/NASF contributor Jack Dini contributed a series of fascinating columns to Plating & Surface Finishing, under the title Fact or Fiction?. After his new offering in July, we are happy to offer a second welcome contribution to his output for the NASF, this time on copper.
NASF/AESF Foundation Research Project #121: Development of a Sustainability Metrics System and a Technical Solution Method for Sustainable Metal Finishing: 1st Quarterly Report
This report (1) introduces the new project and (2) covers the first quarter of project work (April-June 2020) on this project at Wayne State University in Detroit. The objective is to help metal finishing plants to conduct a self-managed sustainability assessment and identify technical solutions for sustainability performance improvement. The reader is invited to contact Dr. Huang in identifying plating shops willing to participate in this program.
Electro-codeposition of MCrAlY Coatings for Advanced Gas Turbine Applications - 11th Quarterly Research Report
The aim of this research is to seek a sulfur-free plating solution for electro-codeposition of (Ni,Co)-CrAlY composite coatings. In this quarter, a sulfur-free, all-chloride plating solution was investigated to lower the sulfur content in the Ni-Co coating matrix. Optimized bath composition and the use of a wetting agent are critical to good results.
The effect of anodizing voltage on the adhesion of nickel electrodeposited on anodized aluminum is related to the morphology of the anodic film. In general, adhesion is a linear function of the applied anodizing voltage. New data on the initial stages of pore formation during anodizing indicate that: (1) that the growth mechanism during the initial stage (< 10 sec) differs from that during subsequent growth, (2) there is no metallic bonding and (3) electrodeposited nickel coatings typically fill the entire pore.
AES Research Project #41: Part 4: Adhesion Failure of Electrodeposited Coatings on Anodized Aluminum Alloys
An SEM study of peel-test adhesion specimens from plated coatings on anodized aluminum shows that failure can be categorized in three different modes: (1) specimens exhibiting poor adhesion strength, which fail at the anodic film/coating interface; (2) specimens with good adhesion strength, which fail by local fracture of the anodic film and (3) specimens with excellent adhesion strength , which fail when the applied load is greater than the strength of the alloy substrate. The effect of anodizing parameters and alloy composition on peel test failure are discussed.
The National Association for Surface Finishing (NASF) explains the latest details of the legislative package for the Paycheck Protection Program (PPP) that would reportedly allow more flexibility for surface finishers to spend forgivable loans for payrolls and expenses.
Over many years, AESF/NASF stalwart Jack Dini contributed a series of fascinating columns to Plating & Surface Finishing, under the title Fact or Fiction?. What follows is a welcome addition to his output for the NASF. Still the prolific writer, Jack discusses celebrities (both scientists and non-scientists) who once worked in electroplating.
Originally published in 1980, this paper was the second on AES Research Project #41, plating on aluminum, at the National Institute for Science and Technology. A study of the morphologies of zinc and tin immersion deposits on Al and its alloys showed that zinc formed epitaxial deposits on alloys, as noted on pure Al. Similarities exist between the zincate and stannate processes; in particular, the same crystallography orientations are active in both systems. Comparisons between zinc deposits produced from solutions containing ferric chloride and Rochelle salts and deposits from the same solution without these additions show that ferric chloride plays a fundamental role in the deposition process.
Originally published in 1978, this paper was the first of several on AES Research Project #41, a study of plating on aluminum, at the National Institute for Science and Technology. A review of immersion pretreatments for the plating on aluminum is presented. The zincate pretreatments dominate the literature, but innovations were reported which offer improved adhesion and corrosion performance. Finally, an updated bio on Dr. Lashmore’s work through the years is offered.