General Atomics Achieves Another Milestone in Silicon Carbide Composite Nuclear Fuel Rod Technology
SAN DIEGO, CALIFORNIA / ACCESS Newswire / June 24, 2025 / General Atomics Electromagnetic Systems (GA-EMS) announced today that it has reached another significant milestone in the development and testing of its SiGA® Silicon Carbide (SiC) nuclear fuel cladding technology. Recent performance testing on GA-EMS' patented, localized SiC joining method has shown excellent performance under the corrosive water conditions expected in the current fleet of pressurized water nuclear reactors, marking a significant step in advancing the readiness of SiGA cladding for reactor testing. SiGA is an engineered, multilayer composite cladding structure that offers high temperature performance and other operational benefits for current and future nuclear reactors.
"Our patented local joining process seals the fuel rods without exposing the nuclear fuel pellets to high temperature water," said Scott Forney, president of GA-EMS. "Our SiC cladding and localized joining method form a complete solution to fully and safely contain the solid fuel and enable it to withstand temperatures six times greater than the expected light-water, pressurized water reactor conditions. The local SiC joining process is also proving to reduce processing time, supporting the scale-up of efficient domestic manufacturing capability to provide safe accident tolerant fuel cladding for the nuclear fleet."
Fuel cladding is a barrier between the reactor coolant and nuclear fuel pellets and is essential to protecting the fuel while also ensuring the safety of a nuclear power plant. Fuel is stacked into cladding tubes and the ends of the tubes are joined to form hermetic seals for the fuel rods. GA-EMS' SiGA cladding offers superior high temperature and irradiation resistance which can significantly improve the operating performance, economic efficiency, and safety of light water reactors.
"We've successfully verified irradiation resistance of our ceramic joints at the Oak Ridge National Laboratory High Flux Isotope Reactor test reactor," said Dr. Christina Back, vice president of GA-EMS Nuclear Technologies and Materials. "Now, GA-EMS is working to evaluate the quality of the SiGA joints under the high temperature, high pressure, and corrosive water coolant environment expected in pressurized water reactors. We achieved a critical milestone this past month, with results confirming that joints fabricated by our local SiC joining process remained gas-tight after 180-days of exposure in Westinghouse's reactor coolant test facility. It is very exciting to be moving to the ultimate demonstration of joint performance testing in the Advanced Test Reactor at Idaho National Laboratory in the presence of both corrosive water coolant and neutron irradiation."
Acknowledgment: Based upon work supported by the US Department of Energy under Award No. DE-NE0009235 "SiC Cladding Development."
Contact InformationGeneral Atomics Electromagnetic Systems Media Relations ems-mediarelations@ga.com8589646989
SOURCE: General Atomics Electromagnetic Systems
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For the Three Months Ended (in millions) May 31, 2025 May 31, 2024 Operating income (loss) $ 2.0 $ (12.9 ) Non-GAAP adjustments to operating income (loss) Restructuring charges 2.9 7.3 Stock compensation expense 5.7 6.2 Acquired intangibles amortization 1.7 1.8 LLA impairment charge 0.1 3.5 Total non-GAAP adjustments to operating income (loss) 10.4 18.8 Adjusted operating income 12.4 5.9 Amortization 5.7 6.4 Acquired intangibles amortization (1.7 ) (1.8 ) Adjusted EBITDA $ 16.4 $ 10.5 Revenue $ 121.7 $ 123.4 Adjusted operating income margin % (1) 10.2 % 4.8 % Adjusted EBITDA margin % (2) 13.5 % 8.5 % (1) Adjusted operating income margin % is calculated by dividing adjusted operating income by revenue.(2) Adjusted EBITDA margin % is calculated by dividing adjusted EBITDA by revenue. The Company uses free cash flow (usage) when assessing its sources of liquidity, capital resources, and quality of earnings. The Company believes that free cash flow (usage) is helpful in understanding the Company's capital requirements and provides an additional means to reflect the cash flow trends in the Company's business. Reconciliation of U.S. GAAP net cash used in operating activities for the three months ended May 31, 2025 and May 31, 2024 to free cash flow (usage) is reflected in the table below: For the Three Months Ended (in millions) May 31, 2025 May 31, 2024 Net cash used in operating activities $ (18.0 ) $ (15.1 ) Acquisition of property, plant and equipment (0.9 ) (1.4 ) Free cash usage $ (18.9 ) $ (16.5 ) Key Metrics The Company regularly monitors a number of financial and operating metrics, including the following key metrics, in order to measure the Company's current performance and estimated future performance. Readers are cautioned that Secure Communications annual recurring revenue ("ARR") and Secure Communications dollar-based net retention rate ("DBNRR") do not have any standardized meaning and are unlikely to be comparable to similarly titled measures reported by other companies. For the Three Months Ended (in millions) May 31, 2025 Secure Communications Annual Recurring Revenue $ 209 Secure Communications Dollar-Based Net Retention Rate 92 % SOURCE: BlackBerry View the original press release on ACCESS Newswire

Miami Herald
7 hours ago
- Miami Herald
General Atomics Achieves Another Milestone in Silicon Carbide Composite Nuclear Fuel Rod Technology
SAN DIEGO, CALIFORNIA / ACCESS Newswire / June 24, 2025 / General Atomics Electromagnetic Systems (GA-EMS) announced today that it has reached another significant milestone in the development and testing of its SiGA® Silicon Carbide (SiC) nuclear fuel cladding technology. Recent performance testing on GA-EMS' patented, localized SiC joining method has shown excellent performance under the corrosive water conditions expected in the current fleet of pressurized water nuclear reactors, marking a significant step in advancing the readiness of SiGA cladding for reactor testing. SiGA is an engineered, multilayer composite cladding structure that offers high temperature performance and other operational benefits for current and future nuclear reactors. "Our patented local joining process seals the fuel rods without exposing the nuclear fuel pellets to high temperature water," said Scott Forney, president of GA-EMS. "Our SiC cladding and localized joining method form a complete solution to fully and safely contain the solid fuel and enable it to withstand temperatures six times greater than the expected light-water, pressurized water reactor conditions. The local SiC joining process is also proving to reduce processing time, supporting the scale-up of efficient domestic manufacturing capability to provide safe accident tolerant fuel cladding for the nuclear fleet." Fuel cladding is a barrier between the reactor coolant and nuclear fuel pellets and is essential to protecting the fuel while also ensuring the safety of a nuclear power plant. Fuel is stacked into cladding tubes and the ends of the tubes are joined to form hermetic seals for the fuel rods. GA-EMS' SiGA cladding offers superior high temperature and irradiation resistance which can significantly improve the operating performance, economic efficiency, and safety of light water reactors. "We've successfully verified irradiation resistance of our ceramic joints at the Oak Ridge National Laboratory High Flux Isotope Reactor test reactor," said Dr. Christina Back, vice president of GA-EMS Nuclear Technologies and Materials. "Now, GA-EMS is working to evaluate the quality of the SiGA joints under the high temperature, high pressure, and corrosive water coolant environment expected in pressurized water reactors. We achieved a critical milestone this past month, with results confirming that joints fabricated by our local SiC joining process remained gas-tight after 180-days of exposure in Westinghouse's reactor coolant test facility. It is very exciting to be moving to the ultimate demonstration of joint performance testing in the Advanced Test Reactor at Idaho National Laboratory in the presence of both corrosive water coolant and neutron irradiation." Acknowledgment: Based upon work supported by the US Department of Energy under Award No. DE-NE0009235 "SiC Cladding Development." Contact InformationGeneral Atomics Electromagnetic Systems Media Relations ems-mediarelations@ SOURCE: General Atomics Electromagnetic Systems press release