K2LiAlP2 — Properties & Data | MatWorld

K2LiAlP2

metal

· K2LiAlP2

K2LiAlP2 is a ternary intermetallic compound combining potassium, lithium, aluminum, and phosphorus. This is a research-phase material rather than an established commercial alloy; it belongs to the family of lightweight metal phosphides and alkali-metal intermetallics being investigated for advanced functional applications. The compound's combination of low density with moderate stiffness makes it interesting for fundamental studies in materials science, particularly for applications requiring lightweight structural or electrochemical properties.

experimental intermetallic compoundslightweight structural researchelectrochemical energy storagephosphide materials developmentalkali-metal alloy researchmaterials screening for aerospace concepts

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	32.58	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	21.83	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.101	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.071	eV	DFT · OptB88vdW
↳	2.877	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	8.251 range 6.008–10.49median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.838	-	DFT · OptB88vdW
↳	5.377	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00174	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00122	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-208.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	275.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	6.090	%	DFT · TBmBJ

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.7723	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

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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.

K2LiAlP2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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