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Invention Publication
CN106324020A 中的所述比例的与温度相关的函数的估算来计用于对试样进行热机械分析的方法和设备 算校正参数(k)，其中，温度程序具有包括例如比 无效 - 撤回

中的所述比例的与温度相关的函数的估算来计用于对试样进行热机械分析的方法和设备 算校正参数(k)，其中，温度程序具有包括例如比
Abstract:
第一基础加热速率(β1)更小的第二基础加热速本发明涉及一种用于对材料的试样(P)进行 率(β2)的第二阶段(S2)，并且为了计算在第二热机械分析的方法，该方法包括：(a)将试样(P) 阶段(S2)中的长度变化(dL)和/或热膨胀系数布置在热机械分析设备(10)中并且借助分析设 (α)的经校正的可逆的分量(dLrev-corr；备根据经调制的温度程序对试样(P)调温；(b)记 αrev-corr)使用根据来自第一阶段(S1)的数据算录借助分析设备获取的数据，该数据表示试样 出的校正参数(k)。(P)在调温过程中的长度变化(dL)；(c)评估数据，以求出试样(P)的长度变化(dL)的可逆的分量(dLrev)和/或热膨胀系数(α)的可逆的分量(αrev)；(d)借助校正参数(k)计算长度变化(dL)和/或热膨胀系数(α)的经校正的可逆的分量(dLrev-corr；αrev-corr)，该校正参数在使用由数据求出的、表征总的长度变化(dLtotal)的参数(αtotal)和表征长度变化(dL)的可逆的分量(dLrev)的参数(αrev)的比例的情况下计算得出。根据本发明，温度程序具有包括第一基础加热速率(β1)的第一阶段(S1)，并且根据来自第一阶段(S1)的数据与温度相关地由在第一阶段(S1)的试样(P)没有经受由热引起的转变过程的区域
Abstract(English):

The invention relates to a thermomechanical analysis of a sample comprising: (a) disposing the sample (P) in a thermomechanical analysis device and controlling the temperature of the sample according to a modulated temperature program; (b) recording data representative for a length change (dL) of the sample (P) during the course of the temperature controlling; (c) evaluating the data in order to determine a reversible component (dLrev) and / or a reversible component ([alpha]reve) of the coefficient of thermal expansion ([alpha]); (d) calculating a corrected reversible component (dLrev-corr; [alpha]rev-corr) of the length change (dL) and / or the coefficient of thermal expansion ([alpha]) by means of a correction parameter (k) which is determined using a ratio of a parameter ([alpha]total) characterizing the total length change (dLtotal) to a parameter ([alpha]rev) characterizing the reversible component (dLrev) of the length change (dL). The temperature program has a first segment (S1) with a first basic heating rate ([beta]1) and the correction parameter (k) is calculated using data from the first segment (S1) in a temperature-dependent manner from an estimate of a temperature-dependent function of the said ratio in a region of the first segment (S1) in which the sample is not subjected to any thermally induced conversion process, and that the temperature program has a second segment (S2) with a second basic heating rate ([beta]2) lower, for example, compared with the first basic heating rate ([beta]1) and the correction parameter (k) calculated using the data from the first segment (S1) is used to calculate the corrected reversible component (dLrev-corr;[alpha]rev-corr) of the length variation (dL) and/or the coefficient ([alpha]) of thermal expansion in the second segment (S2).

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