Pitch, a complex carbonaceous material derived primarily from petroleum and coal, serves as a precursor to carbon materials with extraordinary mechanical and electrical properties. The ability to convert pitch into isotropic and mesophase forms enables the production of fibers that exhibit remarkable strength-to-weight ratios, vital for aerospace engineering, high-performance vehicles, and energy storage solutions. ACP Technologies’ recent inauguration of a pilot plant capable of producing 75 pounds of pitch-derived fiber per hour in Ashland, Kentucky, exemplifies a critical scaling milestone. This plant builds on years of rigorous research and process optimization fostered through extensive collaboration with ORNL.

The alliance between ACP Technologies and ORNL traces back nearly a decade, driven by the quest to refine lower-cost, higher-performing pitch-based carbon fibers. ORNL’s long-standing expertise in alternative carbon fiber precursors provided the foundational knowledge and experimental rigor necessary for overcoming processing challenges inherent to pitch materials. Early-stage laboratory trials focused on characterizing the intricate chemistry of pitch, a heterogeneous blend of multiple polyaromatic hydrocarbons, whose properties cannot be singularly predicted by simple measures such as softening point or viscosity. Instead, nuanced assessments and iterative refinements were essential to advancing fiber spinnability and overall material performance.

One of the pivotal breakthroughs emerged from detailed observations beyond conventional bulk property measurements. The appearance of microscopic particulates within the pitch matrix, which did not significantly affect standard viscosity readings, was found to be detrimental during fiber spinning due to filtration blockages. This insight underscored the necessity for comprehensive analytical techniques to guide the refinement of pitch batches, ensuring consistency during prolonged manufacturing runs. Such meticulous, feedback-driven development epitomizes the symbiosis between ORNL’s scientific acumen and ACP’s practical process engineering.

Beyond the raw material formulation, the stabilization process—an oxygen-rich heat treatment critical for preserving fiber morphology during high-temperature carbonization—received extensive scrutiny. Variations in thermal ramp rates and atmospheric conditions were systematically explored to optimize stabilization uniformity and reduce cycle times, directly impacting the commercial viability of the final product. This careful balance between thermal processing parameters and material integrity was a cornerstone of scaling efforts, marking the transition from laboratory feasibility to industrial reproducibility.

As material formulations matured, the partnership expanded its scope into the Department of Energy’s Carbon Fiber Technology Facility (CFTF) at ORNL. This pilot-scale environment serves as an indispensable bridge between bench-scale experiments and full-scale commercial production. Equipped with melt-spinning lines and downstream processing capabilities, the CFTF allowed ACP Technologies to validate their processes under conditions that closely mimic industrial settings. Such scale-up trials are essential for demonstrating consistent product quality and informing the engineering decisions necessary for capital investment in larger manufacturing plants scheduled to commence operations by 2029.

The CFTF’s integrated approach encompasses the entire fiber production pipeline—from precursor synthesis through stabilization, chopping, and handling—providing ACP with a comprehensive perspective on manufacturing design. This holistic understanding is invaluable when configuring commercial facilities, as it anticipates bottlenecks and variability that may not be evident in isolated process steps. The synergy of cutting-edge research infrastructure and industry partnership exemplifies the applied research mission of national laboratories, translating fundamental discoveries into tangible economic and strategic advantages.

Looking beyond carbon fiber composites, pitch-derived materials hold promise across multiple high-value sectors. Mesophase pitch, for instance, can be converted into synthetic graphite utilized in lithium-ion battery anodes, an area witnessing exponential demand growth in electric vehicles and grid storage applications. The strategic importance of developing domestic sources of such materials cannot be overstated, given geopolitical complexities and supply chain vulnerabilities linked to foreign sourcing of critical minerals and advanced manufacturing capabilities.

The Department of Energy’s Critical Minerals and Energy Innovation Office plays a pivotal role in supporting this technology maturation pathway, channeling resources through the Advanced Materials and Manufacturing Technologies Office and the Transportation Technologies Office. By fostering collaborations that accelerate pilot-scale development and reduce commercialization risk, these programs bolster U.S. competitiveness in strategically vital industries. The research at ORNL, in conjunction with pilot-scale demonstrations at the CFTF, exemplifies how targeted investment in applied R&D translates into jobs, industrial growth, and enhanced national security.

In the broader socio-economic context, the establishment of new pilot and commercial-scale manufacturing facilities in rural communities underscores the inclusive impact of advanced materials innovation. These developments not only pivot cutting-edge science into market realities but also generate sustained economic value, reinforcing the critical linkage between national laboratory capabilities, industrial advancement, and community revitalization.

The story of ACP Technologies and ORNL is emblematic of the transformative power of collaborative innovation in material science. It illustrates how deep scientific insight, combined with strategic development infrastructure, can surmount the formidable challenges of scaling novel materials and processes. As the energy landscape evolves and demands for lightweight, high-performance materials intensify, such pioneering endeavors pave the way for a resilient, dynamic, and technologically sovereign domestic manufacturing sector.

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Image Credits: Amy Smotherman Burgess/ORNL, U.S. Dept. of Energy

Keywords
Materials engineering, Energy infrastructure, Manufacturing plants, Energy resources, Petroleum, Coal

Established in 2018 under the National Quantum Initiative Act, the QSC is a consortium that mobilizes resources and expertise from national laboratories, academia, and industry to propel quantum science forward. The latest funding injection will enable the QSC to enhance its research and development in hybrid algorithms, software integration, and applications that span materials science, artificial intelligence, and beyond. UT’s role within this endeavor focuses on producing novel materials and theoretical models crucial for validating quantum-classical calculations, an area where the university excels thanks to its deep expertise in quantum spin systems and neutron scattering techniques.

Quantum computing architectures often rely on a variety of emerging quantum technologies, including transmon qubits, neutral atoms, and trapped ions. The QSC’s strategy involves co-designing these diverse hardware platforms with leadership-class high-performance computing (HPC) systems, facilitating seamless integration between quantum processors and classical systems. This hybrid model is expected to unlock unprecedented computational power, enabling breakthroughs in chemistry, condensed matter physics, and machine learning.

UT has strategically positioned itself at the forefront of this movement by launching the Center for Advanced Materials and Manufacturing (CAMM) in 2023, funded by the National Science Foundation as a premier Materials Research Science and Engineering Center. CAMM’s mission aligns perfectly with QSC’s objectives, focusing on discovering and engineering new materials that underpin quantum devices. Through an interdisciplinary approach combining synthesis, experimentation, and theoretical modeling, CAMM cultivates an ecosystem where students and researchers can tackle the fundamental challenges limiting current quantum technology.

A significant aspect of UT’s contribution is the application of machine learning techniques to derive accurate models from experimental data on quantum magnets. This innovative approach allows researchers to extract key parameters from neutron scattering measurements, which are essential for benchmarking and verifying quantum simulations. Such validation work represents a critical step to ensure that quantum computations faithfully represent physical reality, an ongoing challenge in the field given the fragile nature of quantum states and the complexity of quantum algorithms.

Physics Professor Alan Tennant, who also serves as CAMM Director, emphasizes the integrative nature of this research effort. UT is not only producing foundational material science research but is also training a new generation of scientists skilled in the intersection of quantum physics, computational modeling, and data science. The collaborative environment fostered by QSC and CAMM enables students to engage in cutting-edge projects including materials fabrication, neutron scattering experiments, and quantum-classical algorithms, ensuring that the pipeline of quantum scientific talent continues to grow robustly.

The QSC’s headquarters at ORNL provide a unique incubator for cross-disciplinary innovation. By bringing together top-tier expertise and state-of-the-art infrastructure from national laboratories, industry, and academia, the center is orchestrating the development of open-source software that integrates quantum and classical workflows. These platforms will accelerate scientific discovery in a range of fields, from fundamental physics to practical applications in manufacturing and artificial intelligence.

One of the core challenges addressed by the QSC is the development of scalable quantum algorithms that can exploit the hybrid architectures under investigation. Scalability and error mitigation remain the primary bottlenecks for quantum computing, and advances in these areas could revolutionize fields such as cryptography, materials science, and complex systems simulation. UT’s research is integral to these efforts, given its strong foundation in quantum materials and its pioneering contributions to quantum spin system analysis, a critical testbed for algorithm validation.

Moreover, the collaboration integrates experimental and theoretical perspectives, allowing researchers to test hypotheses in real-world quantum materials and devices. Neutron scattering, a powerful experimental technique used by UT, offers unparalleled insight into the magnetic and structural properties of candidate quantum materials. These insights feed directly into simulations run on hybrid quantum-classical systems, creating a feedback loop that sharpens the fidelity of quantum algorithms and helps identify new pathways to optimize hardware designs.

As the quantum computing landscape evolves, the development of hybrid quantum-classical architectures promises to deliver practical solutions faster than ever before. Such platforms merge the unique quantum capabilities with the robust, proven classical computing infrastructure, delivering computational tools that accelerate problem-solving across scientific domains. UT’s involvement through the QSC not only advances fundamental science but also contributes vital resources and expertise that ensure America remains a leader in the global quantum race.

According to Prof. Tennant, this initiative situates the University of Tennessee at a strategic nexus where emerging technologies and traditional computation converge. The university’s work in quantum materials, neutron experiments, and quantum algorithm validation propels the country’s roadmap for quantum technology forward, directly supporting national goals for innovation and competitiveness. Through this collaboration, the forces of academia, government laboratories, and industry synchronize their efforts to construct a foundation for a new quantum era.

The Quantum Science Center’s vision extends beyond merely developing hardware; it encompasses building a comprehensive ecosystem of tools, methods, and talent that will underpin next-generation quantum technologies. With support from the Department of Energy and guided by leading research teams including UT, the center is pioneering hybrid computing architectures that integrate various quantum platforms with leadership-class HPCs. These hybrid systems will enhance computational robustness, improve algorithmic scalability, and refine simulation accuracy, paving the way for revolutionary breakthroughs across scientific and technological frontiers.

For more information on the QSC’s work and the broader quantum initiative, interested parties can visit the official website at qscience.org. The University of Tennessee’s involvement in this national effort highlights its commitment to pioneering innovation at the intersection of quantum physics, computational science, and advanced materials, shaping the future landscape of scientific technology.

Subject of Research: Quantum computing, hybrid quantum-classical architectures, quantum materials, neutron scattering, machine learning in quantum systems

Article Title: The University of Tennessee at Knoxville Advances America’s Quantum Future with New Funding for Integrated Quantum-Classical Computing Research

News Publication Date: Not explicitly stated in the content

Web References:

• https://www.ornl.gov/news/ornl-partners-secure-125m-renewal-quantum-science-center
• https://www.energy.gov/articles/energy-department-announces-625-million-advance-next-phase-national-quantum-information
• https://www.quantum.gov/about/
• http://qscience.org/

Image Credits: Adam Malin/ORNL, Department of Energy

Keywords: Quantum mechanics, Quantum computing, Machine learning, Neutrons