/**
 * MaterialProperties — Temperature-dependent material property lookup.
 *
 * Provides piecewise-linear interpolation of material properties as
 * functions of temperature. Data sourced from peer-reviewed references.
 *
 * Usage:
 *   getMaterialAtTemperature('steel_a36', 500) → properties interpolated at 500K
 *   getThermalConductivity('copper', 600)      → k(600K) for copper
 *
 * References:
 *   [1] Incropera, DeWitt et al., "Fundamentals of Heat and Mass Transfer", 7th ed.
 *   [2] NIST Chemistry WebBook, SRD 69
 *   [3] ASM Handbook, Vol. 1
 *   [4] Touloukian, Y.S. et al., "Thermophysical Properties of Matter", TPRC Data Series
 */
import { type ThermalMaterial } from './MaterialDatabase';
/** A data point in a property-vs-temperature table. */
interface DataPoint {
    T: number;
    value: number;
}
/** Temperature-dependent property tables for a material. */
export interface TemperatureDependentProperties {
    /** Source citation for the tabulated data */
    source: string;
    /** Valid temperature range [min, max] in Kelvin */
    range: [number, number];
    /** Thermal conductivity k(T) in W/(m·K) */
    conductivity?: DataPoint[];
    /** Specific heat cp(T) in J/(kg·K) */
    specific_heat?: DataPoint[];
    /** Density rho(T) in kg/m³ */
    density?: DataPoint[];
    /** Dynamic viscosity mu(T) in Pa·s (fluids only) */
    dynamic_viscosity?: DataPoint[];
}
/**
 * Get thermal properties at a specific temperature (Kelvin).
 * Uses piecewise-linear interpolation of tabulated data.
 * Falls back to room-temperature values if no T-dependent data exists.
 */
export declare function getMaterialAtTemperature(name: string, T: number): ThermalMaterial;
/**
 * Get a single thermal conductivity value at temperature T (Kelvin).
 */
export declare function getThermalConductivity(name: string, T: number): number;
/**
 * Get a single specific heat value at temperature T (Kelvin).
 */
export declare function getSpecificHeat(name: string, T: number): number;
/**
 * Get density at temperature T (Kelvin).
 */
export declare function getDensity(name: string, T: number): number;
/**
 * Get dynamic viscosity at temperature T (Kelvin). Fluids only.
 * Returns undefined if not available for this material.
 */
export declare function getDynamicViscosity(name: string, T: number): number | undefined;
/**
 * Check if temperature-dependent data exists for a material.
 */
export declare function hasTemperatureDependentData(name: string): boolean;
/**
 * Get the valid temperature range for a material's T-dependent data.
 */
export declare function getTemperatureRange(name: string): [number, number] | undefined;
/**
 * List all materials with temperature-dependent data.
 */
export declare function listTemperatureDependentMaterials(): string[];
export {};
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