The phrase "a second aspect of" is correct and usable in written English.
It can be used when discussing different facets or components of a topic or subject matter.
Example: "In addition to the primary focus, a second aspect of the research involves examining the long-term effects of the treatment."
Alternatives: "another facet of" or "a different dimension of".
There is a second aspect of inflation that Mr. Greenspan will almost certainly address.
A second aspect of Augustine's theodicy, often called the "free will defence", provides a stronger response to this objection.
A second aspect of the week's activities, Ms. Becker said, is to "see art and culture as a vital force for social change".
Justice John Paul Stevens complained about a second aspect of the appeal: the appeals court had left it to the trial judge to determine the details of how and when hearings would take place.
A second aspect of American exceptionalism is that while in other countries citizenship is a function of birth and blood, you become an American by assimilating to a certain way of life, a certain aspiration.
The decision, Chamber of Commerce v. Whiting, No. 09-115, also upheld a second aspect of the Arizona law, this one making mandatory an otherwise voluntary federal program, E-Verify, that allows employers to verify whether potential employees are authorized to work.
A third aspect of crafts comes out in an exhibition.
A third aspect of economic importance has been the extensive reserves of petroleum and natural gas discovered beneath the seafloor.
"A third aspect of humanism is the idea that history is a story of human advance, with rationality increasing over time".
This fear-filled view of Castro as international bogeyman was exacerbated by a third aspect of his political life story – his self-appointed role as a prime exporter of revolution, unbending champion of the oppressed and bold advocate for the countries of the developing world.
