Yes, db2move should indeed do the job.
Remember to duplicate also any aliases, views, triggers, user-defined functions, ...
I've never used the ixf file format so I'm not sure if it will be loadable by SQLServer. You should maybe first try out the whole chain with a single table to check this.
For a finer control over tables, file format, etc. you can also directly use the export utility (and e.g. use the DEL file format). You could use the list of table names generated by db2move.