Table Column Operations

When creating a new table in Pandat™, user can select the properties listed in the left column and drag them to the right column as shown in Figure 1 in Section Icons for Table on Toolbar. Pandat™ allows user perform algebraic calculations and simple logic operations on the properties and create a customized table.

Table 1 and Table 2 in Section Mathematical Functions and Operationslist the mathematical algebraic functions available for table column expressions with examples. Nested functions are also allowed. Table 3 in Section Mathematical Functions and Operations lists the logical expressions that can be used to extract a set of specific data from Pandat™ calculation results. These expressions can be applied to default table or other types of tables obtained from the calculation results. For example, user needs the first melting temperatures after a section calculation. A constraint can been easily set as “f(@Liquid)=0”. Multiple constraints can be realized by setting one constraint in a row in the Table Editor shown in Figure 1 in Section Icons for Table on Toolbar.

Here an example is given to demonstrate how to use the logical expression to obtain useful information from the calculated results. Figure 1 shows the calculated Al-Mg binary phase diagram. After the calculation, a table is generated with the constraint of f(@Liquid)=0, as seen in Figure 2. The new generated table is shown in Figure 3, which is a subset of the phase boundaries of Al-Mg where liquid phase exists and has phase fraction of zero, the so-call “first melting” boundary. This set of boundaries can be plotted on the Al-Mg phase diagram following the approach in Section Graph. The first melting line is shown in red as in Figure 4. More examples will be presented in Section Table Column Functions