PmSm

ceramic

· JVASP-156746· PmSm

PmSm is a rare-earth ceramic compound composed of promethium and samarium oxides, representing an experimental or specialized material within the rare-earth ceramic family. This material is primarily investigated for nuclear and radiation-shielding applications due to the inherent radioactive properties of promethium, as well as for high-temperature structural applications where rare-earth ceramics provide oxidation resistance and thermal stability. Engineers would consider this material in niche aerospace, nuclear, or advanced defense contexts where its unique combination of thermal properties and radiation characteristics offers advantages over conventional ceramics, though its radioactive nature, cost, and limited commercial availability make it impractical for most standard engineering applications.

nuclear reactor componentsradiation shieldinghigh-temperature oxidation resistanceexperimental aerospace materialsspecialized nuclear researchdefense applications

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,531.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	3,122.7	ksi	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2698	lb/in³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	DFT · OptB88vdW
↳	eV	DFT · TBmBJ
Magnetic Moment(μB)	µB	DFT · OptB88vdW

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01450	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.00781	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

PmSm — Properties & Data | MatWorld

PmSm

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental