Y-12 Blog
Take 5 minutes to learn about Sean L., Y-12 Nuclear Maintenance Services director. All views and opinions are the employee’s own and do not necessarily reflect those of CNS.
Sean L. brings experience as both an engineer and a naval officer to his job at Y-12.
Unlike for some people, Mondays don’t get him down.
“I love them,” he said. “Mondays are what set the pace for the entire week. If you have a great Monday, you will have a great week.”
He spends his work weeks as the director of Y-12 Nuclear Maintenance Services, which has a large presence on the site.
“We have about 440 people in this organization,” he said. “We pretty much do everything, everywhere. We are practically in all of the facilities in the valley. We maintain various machinery and equipment, perform new machine demos, revive older pieces, and install new technology. We make sure everything is operational and mission-ready to support the work.”
Sean has hit the ground running since he arrived at Y-12 in October of 2023. Before that, he was at Savannah River Nuclear Solutions in South Carolina, where he was manager of Quality Assurance and Assessments and NNSA Operations and Programs. He was also the manager for the Savannah River Tritium Enterprise, which is a part of the Nuclear Security Enterprise.
Although the work he did at Savannah River was important, it was much different than the scope of tasks at Y-12.
“It’s the complexity of the work and the integration of all of the missions in one location,” he said. “This was very surprising to me. When I was at Savannah River, it was about environmental management. It was cleanup-based. Coming from there to here is like going from junior high to college.”
Sean also brings to Y-12 his experience as an engineer, a naval officer, and a subject-matter expert in nuclear propulsion plant operation, construction maintenance, regulatory compliance oversight, quality assurance, and project management.
“I came into a great situation,” he said. “It doesn’t always happen that way. This group I work with is high-functioning and dedicated to achieving mission excellence. Every day, this team reels off win after win.”
Leading people is his passion. He added, “But it’s not just about me leading them but also about learning from them, and hopefully they are learning something from me. This creates a place where we can all grow and succeed.”
How has working for CNS changed or reinforced your thoughts on our mission (nuclear deterrence, managing the stockpile, etc.)?
Working here has definitely reinforced my confidence in the state of our stockpile. At Y-12, I see the people are going in the same direction. They are not sitting on the sidelines saying, ‘This isn’t my job,’ if something needs to done. I never knew before I got into the DOE system how many people have to come together to support the nation’s stockpile.
Why is it important we hold ourselves accountable in our daily tasks?
We have to own the things we do. We are accountable to ourselves and our production customers. When it comes down to it, we are accountable to the nation. We don’t have an opportunity to not get it right. We don’t work at Chick-fil-A––if you forget to put a pickle on a sandwich, it’s not that big of a deal. If we forget something here, that’s a bad day.
What is one thing your coworkers would be surprised to know about you?
I raise miniature goats. I love them. I have a little farm with a couple dozen of them. They are cute little guys. Can’t have a bad day when you’re outside with the goats.
What’s your top bucket list item and why?
I want to go to the Harley-Davidson Museum in Milwaukee on my motorcycle. That would be really cool. I used to do a lot of bike trips. I’ve ridden several thousand miles in a month. One of longest trips was from Newport News, Virginia to New York.
What work advice would you offer someone who is new to Pantex or Y-12?
Listen and always seek to understand [the situation, other perspectives, etc.] when there is a problem or an issue. That way, you can participate in the solution. Also, be open to the idea that there is a better way sometimes, and compromise isn’t failure. You might think you have the right answer, but you have to be open to alternative solutions.
Y‑12’s innovative and safer low temperature method for yielding lithium has the potential to change current methodologies.
Lithium (Li) has been a valued commodity to the battery manufacturing industry since the 1970s, but the Y‑12 National Security Complex (Y‑12) has valued lithium for the nuclear deterrence mission for decades longer. Unfortunately, the standard process to make lithium metal is energy demanding, environmentally harmful, and dangerous for personnel.
One Y‑12 inventor is trying to change that. John F., a senior chemistry specialist in Y‑12 Development, created and patented a safer low-temperature and chlorine‑free approach to lithium metal production that yields higher purity, efficiency, safety, and performance. John F. also serves as the Principal Investigator on a high‑temperature cell project at Y‑12.
Conventional lithium metal production methodologies require lithium ore to be processed into lithium chloride (LiCl). This extensive and energy-intensive process requires electrolysis at extremely high temperatures (over 800 degrees Fahrenheit) to extract lithium from a molten salt, resulting in high energy demand and the release of harmful toxins such as chlorine which harm the environment. Applying his experience with battery science, extractive metallurgy, and knowledge of nuclear fuel solvent extraction, Freiderich built a lithium metal production process that is much safer and environmentally friendly.
The new method is conducted at near room temperature with a byproduct of oxygen. This method can yield lithium with purity above 95% by weight, resulting in improved efficiency, performance, safety, sustainability, and 92% less energy demand compared to high‑temperature cell methods, with the possibility to go directly from ore or raw lithium to metal. This new process could drastically reduce the environmental impact by removing caustic leaching steps with their accompanying energy requirements and molten salt bath.
“This technology has the possibility to eliminate the industrial process of roasting lithium-contained ores, like spodumene, which is a 900 °C process to produce lithium materials,” reveals John F. “While not fully explored yet, this technology also could potentially reduce the overall number of steps required by Y‑12 and the lithium industry to process Li materials.”
“The Plant Directed Research, Development, and Demonstration (PDRD) program has the unique capability to explore high‑risk and novel methods to modernize and improve our production plants,” states Mike E., Y‑12 PDRD Program Manager. “The low‑temperature, chlorine‑free lithium production method perfectly fits that mission space and has the potential to transform Y‑12’s current lithium manufacturing process.”
Y‑12 is partnering with Novae Metals through FedTech’s Emerging Tech Studio to commercialize the technology. With the commendation of the need to create a U.S.‑based supply chain for lithium and the exponential demand growth for the commodity by 2030, this new method is a potential game changer for Y‑12, the future of lithium battery production, and global energy.
“If successful, this technology can increase the purity of lithium metal with a smaller footprint, enhance worker safety, and minimize impact to the environment,” said Mike E. “Technologies such as this are what the originators of PDRD had in mind when first legislating this funding source to improve our production facilities, and it is exciting to enable the possibilities this process could bring.”
Jovon H. interned at Y-12 in the summer of 2023 and is now working in Y-12 Infrastructure.
Pantex and Y-12 recently welcomed a total of 87 interns from 31 different colleges and universities across the nation. These interns will spend 10 weeks learning about the CNS sites and their missions. They will engage in intense training and learning from their host organizations, culminating in a final project that they will share at the Intern Expo on Tuesday, July 23.
Internships offer students a chance to apply abstract knowledge to form concrete experience. Because of the unique missions at Pantex and Y-12, internship experience gives these graduates an upper-hand in landing a full-time position at one of the sites. From the 2023 intern class, nearly 40% have become full-time employees, with more planning to seek a position at one of the sites after they graduate.
Jovon H. interned at Y-12 in the summer of 2023 and is now working in Y-12 Infrastructure.
“I really enjoyed my internship. I made countless amounts of memories that will be cherished and carried with me through my life,” said Jovon. “Having the luxury of surrounding yourself with people who care about your well-being and have similar missions, goals, and ambitions that further assist you in your career development is not something you find at every company.”
Jovon said that networking was a valuable skill he took from his internship. He truly applied the saying, “It’s not so much about what you know as it is who you know.”
“My internship helped me have the capacity and flexibility to build quality relationships with people,” he said. “If no one knows your name, passions, ambitions, and/or face, how can others assist or know what your ultimate goals and ambitions are as an employee?”
Another former intern, Darby L., who interned at Pantex in 2022 and received a job offer with Pantex Career One after graduation, said that as an Amarillo native, she grew up thinking it would be great to work at Pantex someday.
“Getting to come out to Pantex while I was still in school helped me determine if I wanted to continue working at Pantex as a full-time employee,” Darby said. “I enjoyed the friendly community of Pantex as well as the overall mission statement.”
According to Darby, one of the most important skills she learned from her internship that she still uses in her job now is the ability to communicate effectively.
“In my job, I am always meeting new people as well as learning new things,” she said. “I learned the importance of asking for help when needed as well as asking questions. I have applied the communication skills learned from my internship into my everyday tasks.”
To the incoming interns, Darby offered this advice to help them during their internship: “I’d recommend building connections with your employers and fellow interns.”
Jovon echoed the importance of connecting with other people during an internship.
“Communicate and collaborate with each other,” he said. “Coming in, everyone is on the same playing field and is relatable. Also, seek a mentor in your organization who you look up to, and don’t be afraid to fail or ask questions.”
Y-12 recently welcomed 49 summer interns from 23 different colleges and universities across the nation.
Y-12er father and son, Tim and Zach, love that they have a shared mission at work.
June is the month to celebrate the fathers in our lives. Some lucky employees have the privilege of working with their fathers on‑site.
Meet Y-12ers Tim and Zach H., father and son.
Tim, a project manager in Y-12 Projects, and Zach, an electrician in Y-12 Construction, know very well what it looks like to follow in their fathers’ footsteps. Tim’s father and grandfather both worked at Y-12, and just like Zach, Tim started his career at Y-12 as an electrician.
“It is really cool to be able to say you are part of four generations who have worked to serve the very important mission here at Y-12 and have helped secure our nation’s freedom,” Tim said.
While they don’t get to see each other at work often, Tim says he’s fortunate to have a front row seat to see Zach grow in his career, be able to provide him with advice, and share the perspective he’s gained throughout his time at Y-12.
“He has taught me the importance of providing for my family and that if you have a good work ethic, the reward will find you,” Zach said about his dad.
From professional to personal achievements, Tim shares that he is proud of seeing Zach grow into the man he has become.
“Zach makes me proud on so many levels,” Tim said. “He is a new father himself and is such a great dad. On a professional level, he is someone who can be counted on to deliver and is always willing to learn new things. I guess that is something that Y-12 and I have in common; we are both lucky to have Zach.”
Wireless technology has made its way to the Central Training Facility (CTF), creating a more efficient learning environment for security police officers.
Located about 8 miles west of Y‑12, CTF is a DOE‑certified and approved weapons qualification and training facility used to equip security personnel to protect national security assets, facilities, people, and government property.
“The CTF holds a variety of courses that range from entry‑level to tactical training disciplines,” said Jay W., CTF Range Operations manager.
Class sizes vary from 10 to 35 students, and courses are open to all DOE sites. The facility also holds site‑specific training and qualifications for more than 650 security police officers across three entities: Oak Ridge National Laboratory, Oak Ridge Protective Force, and Y‑12.
Trainees previously were unable to connect to the CNS network due to the lack of wired terminals. The installation of unclassified wireless access points now allows the classroom portion of the training to transition to online learning.
“Having wireless connectivity is a significant productivity gain for our facility where students previously had to share a single computer to access National Training Center coursework through a wired connection point,” Jay said. “Now, students are able to connect at any point using their laptops and cell phones.”
Collaboration among CTF, Information Solutions and Services, Safeguards and Security, and Operations Health brought project success earlier than expected.
“A WiFi signal at CTF was something we didn’t believe was possible a year ago,” said Joe R., Physical Security senior engineer. “Yet, we finished the entire process — from configuration and testing to installation — in 12 months.”
Now that the facility has the foundation to connect wirelessly, additional resources are being planned to further develop the facility and classroom training. For instance, a wireless‑enabled air‑quality monitoring system for the indoor range is being tested to fulfill an Occupational Safety and Health Administration requirement. Once operational, the system will allow range managers to observe and maintain environmental and occupational controls to protect personnel from the effects of lead, noise, or any other relevant exposures.
Training costs will also be significantly reduced over time as pages of lesson plans are moved to a web‑based platform. “Students without computers still have the option to have physical copies of the training manuals, but we’re looking forward to being able to go fully electronic,” Jay said.
To support a full‑time online training environment, the facility’s goal is to establish a wireless computer lab by Fiscal Year 2025 after evaluations and testing are complete. As of March, the CTF conducted a test bed with a basic instructor class of 16 personnel.
“Once finished, the computer lab will give us the option to completely eliminate the need to print training materials,” Jay said. “Based on current manuals at 750 pages for each student, we estimate that we’ll save approximately 26,250 pages per training class, plus have the availability to apply updates automatically without reprinting.”
Installing unclassified wireless at the CTF is a sign of progress, and Digital Transformation integrated product teams are continuing to make risk-informed decisions to enable wireless in other areas across the site while complying with technical security, cybersecurity, and NNSA requirements.
“Our end goal is to implement solutions that support access to business, security, and operations systems site‑wide through wireless technology,” said Mark P., Digital Transformation senior manager. “Right now, we are still in the process of determining requirements and maturing technical implementation plans to address any potential wireless vulnerabilities and ensure that we’re delivering the best product for our mission.”