Terrapower, LLC

Ut-battelle, Inc.

The United States of America As Represented by the United States

Martin Marietta Energy Systems, Inc.

Ronald L Klueh

Philip J Maziasz

Micah J Hackett

Roderick A Hyde

Vinod Kumar Sikka

Joshua C Walter

Charles E Ahlfeld

Michael Leonard Santella

Sudarsanam Suresh Babu

Sean Marshall McDeavitt

William W Bowen

Steven R Kirkendall

Naoyuki Hashimoto

Maan H Jawad

Steve R Kirkendall

Sean M Mcdeavitt

Disclosed embodiments include fuel assemblies, fuel element, cladding material, methods of making a fuel element, and methods of using same.

Iron-based composition for fuel element

A nuclear fuel includes a volume of a nuclear fuel material defined by a surface, the nuclear fuel material including a plurality of grains, some of the plurality of grains having a characteristic length along at least one dimension that is smaller than or equal to a selected distance, wherein the selected distance is suitable for maintaining adequate diffusion of a fission product from a grain interior to a grain boundary in some of the grains, the nuclear fuel material including a boundary network configured to transport the fission product from at least one grain boundary of some of the grains to the surface of the volume of the nuclear fuel material.

Nuclear fuel and method of fabricating the same

A method of making a steel composition includes the steps of:

Nano-scale nitride-particle-strengthened high-temperature wrought ferritic and martensitic steels

A high-strength, high-toughness steel alloy includes, generally, about 2.5% to about 4% chromium, about 1.5% to about 3.5% tungsten, about 0.1% to about 0.5% vanadium, and about 0.05% to 0.25% carbon with the balance iron, wherein the percentages are by total weight of the composition, wherein the alloy is heated to an austenitizing temperature and then cooled to produce an austenite transformation product.

Wrought Cr&#x2014;W&#x2014;V bainitic/ferritic steel compositions

A high strength, high toughness Cr-W-V ferritic steel composition suitable for fast induced-radioactivity (FIRD) decay after irradiation in a fusion reactor comprises 2.5-3.5 wt % Cr, 2.

Cr-W-V bainitic/ferritic steel with improved strength and toughness and

An austenitic stainless steel that is comprised of Fe, Cr, Mn, C but no Ni or Nb and minimum N. To enhance strength and fabricability minor alloying additions of Ti, W, V, B and P are made. The resulting alloy is one that can be used in fusion reactor environments because the half-lives of the elements are sufficiently short to allow for handling and disposal.

Manganese-stabilized austenitic stainless steels for fusion applications

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Knoxville, TN, United States of America

Ronald L Klueh