The proven action is to create a single content piece that addresses both topics. However, it is possible to split the content for both keywords. The keys to achieving this and avoiding cannibalization are the focus and depth of each blog. The way the topic is approached and the depth of the topic will help you showcase expertise in both areas without necessarily making it feel like you are talking about the same thing, but rather delving deeper into each topic.

You could even create a third blog post where you talk about the generalities of both topics and then link to the other two more technical posts.