latent heat of fusion

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latent heat of fusion

The heat required to convert 1 g of a solid to a liquid at the same temperature. For example, the process of converting 1 g of ice at 0°C to water at 0°C requires 80 cal, and, until it is completed, there will be no rise in the temperature.
See also: heat
References in periodicals archive ?
The performance properties of NFNMs such as WVTR, hydrostatic pressure, air permeability and enthalpy of fusion as thermo-regulating property along with mechanical characteristics including strength and elongation were considered as response variables.
In Table-1 to 3, the relative deviation (RD%) is related to experimental enthalpy of fusion and can be given as follows:
The reduced CB1 enthalpy of fusion indicates a lower crystallinity degree (Table 1) that can be explained by the presence of high concentration of extracted compounds (Figure 2).
The decrease in enthalpy of fusion and crystallinity for LDPE treated 10.0M sulfuric acid percentage correlate with the [t.sub.1/2] of 37 min.
These overlapping of the a- and /{-phase peaks causes difficulties in determination of enthalpy of fusion for each phase (A/7, and A/V/d (52) and, hence, different technique have been pmposed to dissociate the peaks and to determine the enthalpy values [24, 30.
This suggestion follows from the observed increase in the total enthalpy of fusion [[DELTA]H.sub.t] and the length of crystalline stem [l.sub.c] (Table 3).
The enthalpy of fusion after complete isothermal crystallization (102 J [.g.sup.-1]) was found to be independent of [T.sub.c] in the whole analyzed temperature range.
where [DELTA][H.sub.m,PLA] and [DELTA][H.sub.c,PLA] are the enthalpies of melting and crystallization of PLA3051 in the blends, respectively, [DELTA][H.sub.0,PLA] is the enthalpy of fusion of 100% crystalline PLA3051 assumed to be 93 J/g (25), [DELTA][H.sub.m,PLA] is the enthalpy of fusion of PCL in the blend and [DELTA][H.sub.0,PLA] is the heat of fusion of fully crystalline PCL, which has been reported to be 139.3 J/g (26).
where ([DELTA][H.sub.fus] is the enthalpy of fusion of the starch/PVA blend and [DELTA][H.sub.fus.sup.o]is the enthalpy of fusion of the 100% crystalline PVA.
This article for the first time focuses on the effect of the PP skin on the structure and properties of the PE pressure core pipe, by examining the density, melting temperature, enthalpy of fusion, overall residual stress, and long-term hydrostatic strength.
The degree of crystallinity, [X.sub.c] (%), was determined by measuring the enthalpy of fusion from the DSC curves as shown in Fig.
The crystallinity of the polymers was calculated from the ratio of the calculated enthalpy (heat) of fusion and the enthalpy of fusion of a completely crystalline sample [9]: