The phrase "a certain phase of" is correct and usable in written English.
It can be used to refer to a specific stage or period in a process, development, or situation.
Example: "During a certain phase of the project, we encountered unexpected challenges that required us to rethink our strategy."
Alternatives: "a specific stage of" or "a particular period of".
The artist should have the right to identify his work with a certain phase of his development.
Updike: That poem was perhaps the longest piece of light verse The New Yorker ever printed, and it is a poem I'm proud of as representing a certain phase of my productivity.
In order to determine information about a certain phase of a material, the need for a method that offers an objective evaluation is necessary.
The standard terminology for concepts like 'kitten' which apply during a certain phase of an object's existence is "phase sortal" (Wiggins 1967) while expressions such as "red table" are usually said to be 'restricted sortals'.
Note that a variable may represent for instance using one or another product in a certain phase of the process, applying one certain methodology or not, and so on.
Thereby, one might consider whether it is possible to identify each role as being connected to a certain phase of the collaboration process for example in the sense that the Power Promoter is first and foremost connected to the beginning of a collaboration.
to better understand the effects of nanopillar-patterned surface factors on droplet wetting behaviors and obtain a certain phase diagram of wetting states of a water droplet on a nanopillar-patterned surface.
In response to the translating visual stimulus, the pulsations are suppressed at a certain phase independent of the time of stimulus application.
Instead, their basic function is to favor the appearance of a certain phase shift of the fields in the post-synaptic unit relative to the pre-synaptic one, and consequently to induce the alignment of grids, producing a common orientation in the population (Si and Treves, 2013).
The projection of a double-cluster state onto a certain phase plane of dynamical variables (right panels of Fig. 2) sheds light on an important aspect of the clustering dynamics; it reveals that (i) a strong correlation between the heterogeneity parameter ω and the dynamical variables separately develops for each cluster and (ii) that the neurons break up almost evenly in ω to form two clusters.
It was found that Co had diffused out of the substrate toward the coating layer and formed a certain phase composed of Ti and Co.
