Search NASA⌕ Search

SEARCH · Search NASA

Results for “CrMo”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

INL CRMO XRF Special Report No. 3: INL CRMO XRF Calibration Methods for the Analysis of Ceramics and Brick

This report details the analytical methods used by the Idaho National Laboratory Cultural Resource Management Office to characterize ceramic and brick artifacts using X-ray fluorescence spectrometry. More specifically, this report provides details on instrumentation, analysis times, and matrix-specific calibration protocols for ceramic materials. Calibration curves were developed to adjust raw instrumental output for 13 elements using a suite of reference standards made from historic brick borrowed from the Yale Peabody Museum. Calibration curves were validated by plotting predicted values against published reference values for the calibration set as well as a certified soil reference standard (SRM 2711a).

36 MATERIALS SCIENCE↗

INL CRMO XRF Report 2024-01: Provenance Determinations for 135 Haskett Projectile Points from Eastern Idaho

This report presents provenance determinations for 135 obsidian and fine-grained volcanic (FGV) Haskett projectile points from across eastern Idaho. These determinations were made using energy-dispersive X-ray fluorescence (ED-XRF) spectrometry at the Idaho National Laboratory (INL) Cultural Resource Management Office (CRMO) under the direction of Dr. Kyle Freund.

58 GEOSCIENCES↗

INL CRMO XRF Report 2025-03: Provenance Determinations for 854 Projectile Points from Idaho Falls District Bureau of Land Management Archaeological Collections

This report presents provenance determinations for 854 obsidian and fine-grained volcanic projectile points from Idaho Falls District Bureau of Land Management collections. Provenance determinations were made using energy dispersive X-ray fluorescence (ED-XRF) spectrometry at the Idaho National Laboratory (INL) Cultural Resource Management Office (CRMO) under the direction of Dr. Kyle Freund.

99 - GENERAL AND MISCELLANEOUS↗

INL CRMO XRF Report 2025-04: Provenance Determinations for 116 Obsidian Artifacts from Upper Snake U.S. Bureau of Reclamation Archaeological Collections

This report presents provenance determinations for 116 obsidian artifacts from Upper Snake U.S. Bureau of Reclamation collections. Provenance determinations were made using energy dispersive X-ray fluorescence (ED-XRF) spectrometry at the Idaho National Laboratory (INL) Cultural Resource Management Office (CRMO) under the direction of Dr. Kyle Freund.

99 - GENERAL AND MISCELLANEOUS↗

INL CRMO XRF Report 2025-02: Provenance Determinations for 1,124 Projectile Points from Lands and Collections Managed by the U.S. Department of Energy-Idaho Operations Office (DOE-ID)

This report presents provenance determinations for 1,124 obsidian and fine-grained volcanic (FGV) projectile points from lands and collections managed by the U.S. Department of Energy-Idaho Operations Office (DOE-ID). These determinations were made using energy-dispersive X-ray fluorescence (ED-XRF) spectrometry at the Idaho National Laboratory (INL) Cultural Resource Management Office (CRMO) under the direction of Dr. Kyle Freund.

58 GEOSCIENCES↗

INL CRMO XRF Report 2025-05: Provenance Determinations for 23 Folsom and Midland Projectile Points from Eastern Idaho

This report presents provenance determinations for 23 obsidian and fine-grained volcanic Folsom and Midland projectile points from eastern Idaho. Provenance determinations were made using energy dispersive X-ray fluorescence (ED-XRF) spectrometry at the Idaho National Laboratory (INL) Cultural Resource Management Office (CRMO) under the direction of Dr. Kyle Freund.

58 GEOSCIENCES↗

INL CRMO XRF Report 2025-06: Provenance Determinations for 246 Obsidian and Fine-grained Volcanic Artifacts from Folsom-era Sites in Eastern Idaho

This report presents provenance determinations for 246 obsidian and fine-grained volcanic artifacts from Folsom-era sites in eastern Idaho. Provenance determinations were made using energy dispersive X-ray fluorescence (ED-XRF) spectrometry at the Idaho National Laboratory (INL) Cultural Resource Management Office (CRMO) under the direction of Dr. Kyle Freund.

58 GEOSCIENCES↗

Materials Data on CrMo by Materials Project

Cr(Mo) crystallizes in the orthorhombic Cmmm space group. The structure is two-dimensional and consists of two Cr(Mo) sheets oriented in the (0, 1, 0) direction. Mo is bonded in a 4-coordinate geometry to four equivalent Cr atoms. All Mo–Cr bond lengths are 2.60 Å. Cr is bonded in a 4-coordinate geometry to four equivalent Mo atoms.

36 MATERIALS SCIENCE↗

The geology, geochemistry, and geographic distribution of southern Idaho obsidian

The Snake River Plain Volcanic Province of Southern Idaho is host to an abundance of pyroclastic obsidian deposits that constitute the principal lithic raw material utilized by Native Americans of the region throughout the Precontact Period. Archaeologists have long looked to obsidian as a source of information on past patterns of raw material selection, landscape use, and mobility through geochemical analysis of obsidian artifacts and lithic raw materials. Formation of the Snake River Plain through cataclysmic “super-eruptions” of the Yellowstone hotspot, however, presents one of the most complex and poorly understood obsidian source-scapes of North America. To clarify the geographic distribution of Southern Idaho obsidian source groups, the INL CRMO has compiled a comprehensive reference library of geologic obsidian from 138 source locales distributed across the southern half of the state. In this report, we define 28 geochemically distinct obsidian source groups that occur at these deposits through X-ray Fluorescence spectrometry and contextualize the geographic distribution of each source group relative to the history of silicic magmatism on the Snake River Plain. This research facilitates ongoing investigations at the INL CRMO into patterns of obsidian procurement, conveyance, and exchange in Southern Idaho throughout the Precontact Period.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗